Part 1 Getting the Information You Need
1 Data Collection
OutlineTest Bank for Statistics - Informed Decisions Using Data 6th Edition-Sullivan III
MULTIPLE CHOICE. Choose the one alternative that best completes the st
...
Part 1 Getting the Information You Need
1 Data Collection
OutlineTest Bank for Statistics - Informed Decisions Using Data 6th Edition-Sullivan III
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
12) Parking at a large university has become a very big problem. University administrators are interested in determining the average parking time (e.g. the time it takes a student to find a parking spot) of its students. An administrator inconspicuously followed 190 students and carefully recorded their parking times. Identify the population of interest to the university administration.
A) the students that park at the university between 9 and 10 AM on Wednesdays
B) the parking times of the entire set of students that park at the university
C) the parking times of the 190 students from whom the data were collected
D) the entire set of faculty, staff, and students that park at the university
12)
13) A manufacturer of cellular phones has decided that an assembly line is operating satisfactorily if less than 0.01% of the phones produced per day are defective. To check the quality of a day's production, the company decides to randomly sample 60 phones from a day's production to test for defects. Define the population of interest to the manufacturer.
A) the 60 responses: defective or not defective
B) the 0.01% of the phones that are defective
C) the 60 phones sampled and tested
D) all the phones produced during the day in question
13)
14) A recent study attempted to estimate the proportion of Florida residents who were willing to spend more tax dollars on protecting the Florida beaches from environmental disasters. Twenty- one hundred Florida residents were surveyed. Which of the following is the population used in the study?
A) all Florida residents who lived along the beaches
B) the 2,100 Florida residents surveyed
C) the Florida residents who were willing to spend more tax dollars on protecting the beaches from environmental disasters
D) all Florida residents
14)
15) Parking at a large university has become a very big problem. University administrators are interested in determining the average parking time (e.g. the time it takes a student to find a parking spot) of its students. An administrator inconspicuously followed 130 students and carefully recorded their parking times. Identify the sample of interest to the university administration.
A) location of the parking spot B) parking times of the 130 students
C) type of car (import or domestic) D) parking time of a student
15)
16) The legal profession conducted a study to determine the percentage of cardiologists who had been sued for malpractice in the last five years. The sample was randomly chosen from a national directory of doctors. Identify the individuals in the study.
A) all cardiologists in the directory
B) the doctor's area of expertise (i.e., cardiology, pediatrics, etc.)
C) the responses: have been sued/have not been sued for malpractice in the last five years
D) each cardiologist selected from the directory
16)
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
4
Test Bank for Statistics - Informed Decisions Using Data 6th Edition-Sullivan III
17) Administrators at a large university want to know the average debt incurred by their graduates. Surveys were mailed to 260 graduating seniors asking them to report their total student loan debt. Identify the population, sample, and individuals in the study.
17)
5
Test Bank for Statistics - Informed Decisions Using Data 6th Edition-Sullivan III
18) A study was conducted to determine if listening to heavy metal music affects critical thinking. To test the claim, 120 subjects were randomly assigned to two groups. Both groups were administered a basic math skills exam. The first group took the exam while heavy metal music was piped into the exam room, while the second group took the exam in a silent room. The mean exam score for the first group was 82, and the mean exam score for the second group was 90. The researchers concluded that heavy metal music negatively affects critical thinking. Identify (a) the research objective, (b) the sample, (c) the descriptive statistics, and (d) the conclusions made in the study.
18)
19) A telephone poll asked 1,122 registered voters "Would you vote for the current vice president if he ran for president?" Of these 1,122 respondents, 37% would vote for the current vice president if he ran for president. The administrators of the study concluded that 37% of all registered voters would vote for the current vice president if he ran for president. Identify (a) the research objective, (b) the sample, (c) the descriptive statistics, and (d) the conclusions made in the study.
19)
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
20) Which branch of statistics deals with the organization and summarization of collected information?
A) Inferential statistics B) Computational statistics
C) Descriptive statistics D) Survey design
20)
Classify the variable as qualitative or quantitative.
21) the colors of book covers on a bookshelf
A) quantitative B) qualitative
21)
22) the number of calls received at a company's help desk
A) qualitative B) quantitative
22)
23) the number of seats in a school auditorium
A) quantitative B) qualitative
23)
24) the numbers on the shirts of a football team
A) quantitative B) qualitative
24)
25) the bank account numbers of the students in a class
A) qualitative B) quantitative
25)
26) the weights of cases loaded onto an airport conveyor belt
A) qualitative B) quantitative
26)
27) the temperatures of cups of coffee served at a restaurant
A) qual
6
Test Bank for Statistics - Informed Decisions Using Data 6th Edition-Sullivan III
itative B) quantitative
27)
28) the native languages of students in an English class
A) quantitative B) qualitative
28)
7
Test Bank for Statistics - Informed Decisions Using Data 6th Edition-Sullivan III
Solve the problem.
29) A bicycle manufacturer produces four different bicycle models. Information is summarized in the table below:
Model
Series Number
Weight
Style
Ascension
A120
32
Mountain
Road Runner
B640
22
Road
All Terrain
C300
27
Hybrid
Class Above
D90
17
Racing
Identify the variables and determine whether each variable is quantitative or qualitative.
A) series number: quantitative; weight: qualitative; style: qualitative
B) series number: quantitative; weight: quantitative; style: qualitative
C) series number: qualitative; weight: qualitative; style: qualitative
D) series number: qualitative; weight: quantitative; style: qualitative
29)
30) An international relations professor is supervising four master's students. Information about the students is summarized in the table.
Student Name
Student Number
Area of Interest
GPA
Anna
914589205
Africa
3.23
Pierre
981672635
Middle East
3.50
Juan
906539012
Latin America
3.80
Yoko
977530271
Asia
3.71
Identify the variables and determine whether each variable is quantitative or qualitative.
A) student number: qualitative; area of interest: qualitative; GPA: qualitative
B) student number: qualitative; area of interest: qualitative; GPA: quantitative
C) student number: quantitative; area of interest: qualitative; GPA: quantitative
D) student number: quantitative; area of interest: qualitative; GPA: qualitative
30)
Provide an appropriate response.
31) Quantitative variables classify individuals in a sample according to
A) physical attribute. B) personality characteristic.
C) exhibited trait. D) numerical measure.
31)
Determine whether the quantitative variable is discrete or continuous.
32) the number of bottles of juice sold in a cafeteria during lunch
A) discrete B) continuous
32)
33) the weight of a player on the wrestling team
A) continuous B) discrete
33)
34) the cholesterol levels of a group of adults the day after Thanksgiving
A) discrete B) continuous
34)
8
Test Bank for Statistics - Informed Decisions Using Data 6th Edition-Sullivan III
35) the low temperature in degrees Fahrenheit on January 1st in Cheyenne, Wyoming
A) continuous B) discrete
35)
36) the number of goals scored in a hockey game
A) continuous B) discrete
36)
9
Test Bank for Statistics - Informed Decisions Using Data 6th Edition-Sullivan III
37) the speed of a car on a Boston tollway during rush hour traffic
A) continuous B) discrete
37)
38) the number of phone calls to the police department on any given day
A) discrete B) continuous
38)
39) the age of the oldest employee in the data processing department
A) continuous B) discrete
39)
40) the number of pills in an aspirin bottle
A) continuous B) discrete
40)
Provide an appropriate response.
41) The peak shopping time at a pet store is between 8-11:00 am on Saturday mornings. Management at the pet store randomly selected 100 customers last Saturday morning and decided to observe their shopping habits. They recorded the number of items that a sample of the customers purchased as well as the total time the customers spent in the store. Identify the types of variables recorded by the pet store.
A) number of items - discrete; total time - continuous
B) number of items - discrete; total time - discrete
C) number of items - continuous; total time - continuous
D) number of items - continuous; total time - discrete
41)
42) The number of violent crimes committed in a city on a given day in a random sample of 50 days is a random variable.
A) continuous B) discrete
42)
43) Classify the following random variable: telephone area codes
A) quantitative continuous data B) quantitative discrete data
C) experimental data D) qualitative data
43)
44) A student is asked to rate a guest speaker's ability to communicate on a scale of
poor-average-good-excellent. The student is to fill in a corresponding circle on a bubble form. This is an example of collecting what type of data?
A) insightful B) qualitative C) continuous D) discrete
44)
Determine the level of measurement of the variable.
45) the musical instrument played by a music student
A) ratio B) ordinal C) interval D) nominal
45)
46) the medal received (gold, silver, bronze) by an Olympic gymnast
A) ordinal B) nominal C) ratio D) interval
46)
10
Test Bank for Statistics - Informed Decisions Using Data 6th Edition-Sullivan III
47) height of a tree
A) nominal B) ordinal C) interval D) ratio
47)
48) the native language of a tourist
A) nominal B) ordinal C) ratio D) interval
48)
11
Test Bank for Statistics - Informed Decisions Using Data 6th Edition-Sullivan III
49) the day of the month
A) ordinal B) interval C) nominal D) ratio
49)
50) an officer's rank in the military
A) ratio B) nominal C) ordinal D) interval
50)
51) weight of rice bought by a customer
A) nominal B) interval C) ratio D) ordinal
51)
52) a student's favorite sport
A) ordinal B) interval C) nominal D) ratio
52)
53) ranking (first place, second place, etc.) of contestants in a singing competition
A) ratio B) interval C) ordinal D) nominal
53)
54) weight capacity of a backpack
A) nominal B) ordinal C) ratio D) interval
54)
55) an evaluation received by a physics student (excellent, good, satisfactory, or poor).
A) ratio B) ordinal C) nominal D) interval
55)
56) the year of manufacture of a car
A) interval B) ratio C) ordinal D) nominal
56)
57) time spent playing basketball
A) ordinal B) nominal C) ratio D) interval
57)
58) category of storm (gale, hurricane, etc.)
A) nominal B) ratio C) interval D) ordinal
58)
Determine whether the study depicts an observational study or an experiment.
59) A medical researcher obtains a sample of adults suffering from diabetes. She randomly assigns 42 people to a treatment group and 42 to a placebo group. The treatment group receives a medication over a period of three months and the placebo group receives a placebo over the same time frame. At the end of three months the patients' symptoms are evaluated.
A) observational study B) experiment
59)
60) A poll is conducted in which professional musicians are asked their ages.
A) experiment B) observational study
60)
12
Test Bank for Statistics - Informed Decisions Using Data 6th Edition-Sullivan III
61) A pollster obtains a sample of students and asks them how they will vote on an upcoming referendum.
A) observational study B) experiment
61)
62) The personnel director at a large company would like to determine whether the company cafeteria is widely used by employees. She calls each employee and asks them whether they usually bring their own lunch, eat at the company cafeteria, or go out for lunch.
A) experiment B) observational study
62)
13
Test Bank for Statistics - Informed Decisions Using Data 6th Edition-Sullivan III
63) A scientist was studying the effects of a new fertilizer on crop yield. She randomly assigned half of the plots on a farm to group one and the remaining plots to group two. On the plots in group one, the new fertilizer was used for a year. On the plots in group two, the old fertilizer was used. At the end of the year the average crop yield for the plots in group one was compared with the average crop yield for the plots in group two.
A) observational study B) experiment
63)
64) A researcher obtained a random sample of 100 smokers and a random sample of 100 nonsmokers. After interviewing all 200 participants in the study, the researcher compared the rate of depression among the smokers with the rate of depression among nonsmokers.
A) experiment B) observational study
64)
Provide an appropriate response.
65) True or False: Observational studies allow the researcher to claim causation, not just association.
A) True B) False
65)
66) True or False: Experiments intentionally manipulate the value of an explanatory variable.
A) False B) True
66)
Determine what type of observational study is described. Explain.
67) Researchers wanted to determine whether there was an association between high blood pressure and the suppression of emotions. The researchers looked at 1800 adults enrolled in a Health Initiative Observational Study. Each person was interviewed and asked about their response to emotions. In particular they were asked whether their tendency was to express or to hold in anger and other emotions. The degree of suppression of emotions was rated on a scale of 1 to 10. Each person's blood pressure was also measured. The researchers analyzed the results to determine whether there was an association between high blood pressure and the suppression of emotions.
A) case-control; Individuals are asked to look back in time.
B) cohort; Individuals are observed over a long period of time.
C) cross-sectional; Information is collected at a specific point in time.
67)
68) Researchers wanted to determine whether there was an association between city driving and stomach ulcers. They selected a sample of 900 young adults and followed them for a twenty -year period. At the start of the study none of the participants was suffering from a stomach ulcer. Each person kept track of the number of hours per week they spent driving in city traffic. At the end of the study each participant underwent tests to determine whether they were suffering from a stomach ulcer. The researchers analyzed the results to determine whether there was an association between city driving and stomach ulcers.
A) cross-sectional; Information is collected at a specific point in time.
B) case-control; Individuals are asked to look back in time.
C) cohort; Individuals are observed over a long period of time.
68)
14
Test Bank for Statistics - Informed Decisions Using Data 6th Edition-Sullivan III
69) A researcher wanted to determine whether women with children are more likely to develop anxiety disorders than women without children. She selected a sample of 900 twenty -year old women and followed them for a twenty -year period. At the start of the study, none of the women had children. By the end of the study 53% of the women had at least one child. The level of anxiety of each participant was evaluated at the beginning and at the end of the study and the increase (or decrease) in anxiety was recorded. The researchers analyzed the results to determine whether there was an association between anxiety and having children.
A) case-control; Individuals are asked to look back in time.
B) cross-sectional; Information is collected at a specific point in time.
C) cohort; Individuals are observed over a long period of time.
69)
70) Vitamin D is important for the metabolism of calcium and exposure to sunshine is an important source of vitamin D. A researcher wanted to determine whether osteoperosis was associated with a lack of exposure to sunshine. He selected a sample of 250 women with osteoperosis and an equal number of women without osteoperosis. The two groups were matched - in other words they were similar in terms of age, diet, occupation, and exercise levels. Histories on exposure to sunshine over the previous twenty years were obtained for all women. The total number of hours that each woman had been exposed to sunshine in the previous twenty years was estimated. The amount of exposure to sunshine was compared for the two groups.
A) case-control; Individuals are asked to look back in time
B) cohort; Individuals are observed over a long period of time.
C) cross-sectional; Information is collected at a specific point in time.
70)
71) Can money buy happiness? A researcher wanted to determine whether there was any association between economic status and happiness. She selected a sample of 1000 adults and interviewed them. Each person was asked about their financial situation and their level of happiness was evaluated. The researcher analyzed the results to determine whether there was an association between economic status and happiness.
A) cohort; Individuals are observed over a long period of time.
B) case-control; Individuals are asked to look back in time.
C) cross-sectional; Information is collected at a specific point in time.
71)
72) A researcher wanted to determine whether colon cancer was associated with eating meat. He selected a sample of 500 men with colon cancer and an equal number of men without colon cancer. The two groups were matched - in other words they were similar in terms of age, occupation, income, and exercise levels. Histories on the amount of meat consumed over the previous twenty years were obtained for all men. The total amount of meat that each man eaten in the previous twenty years was estimated. The meat consumption was compared for the two groups.
A) cross-sectional; Information is collected at a specific point in time.
B) cohort; Individuals are observed over a long period of time.
C) case-control; Individuals are asked to look back in time
72)
Provide an appropriate response.
73) The government of a town needs to determine if the city's residents will support the construction of a new town hall. The government decides to conduct a survey of a sample
1.1 Introduction to the Practice of Statistics
Objectives
❶ Define Statistics and Statistical Thinking
➋ Explain the Process of Statistics
❸ Distinguish between Qualitative and Quantitative Variables
Problem
Approach
Solution
❹ Distinguish between Discrete and Continuous Variables
Problem
Approach
Solution
Problem
Approach
Solution
❺ Determine the Level of Measurement of a Variable
Problem
Approach
Solution
1.1 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
1.2 Observational Studies versus Designed Experiments
Objectives
❶ Distinguish between an Observational Study and an Experiment
❷ Explain the Various Types of Observational Studies
Census Data
Obtaining Data through Web Scraping
Downloading Data from the Web
1.2 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
“Scare Science”
Findings Shouldn’t Lead to Fear
1.3 Simple Random Sampling
Objective
❶ Obtain a Simple Random Sample
Problem
Approach
Solution
Obtaining a Simple Random Sample
Problem
Approach
Solution
5
ProfExams
Problem
Approach
Solution
1.3 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
1.4 Other Effective Sampling Methods
Objectives
❶ Obtain a Stratified Sample
Problem
Approach
Solution
❷ Obtain a Systematic Sample
Problem
Approach
Solution
❸ Obtain a Cluster Sample
Problem
Approach
Solution
Convenience Sampling
Multistage Sampling
Sample Size Considerations
Summary
1.4 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
1.5 Bias in Sampling
Objective
❶ Explain the Sources of Bias in Sampling
1.5 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
1.6 The Design of Experiments
Objectives
❶ Describe the Characteristics of an Experiment
Problem
Approach
Solution
➋ Explain the Steps in Designing an Experiment
➌ Explain the Completely Randomized Design
Problem
Approach
Solution
➍ Explain the Matched-Pairs Design
Problem
Approach
Solution
❺ Explain the Randomized Block Design
6
ProfExams
Problem
Approach
Solution
1.6 Assess Your Understanding
Vocabulary
Applying the Concepts
Explaining the Concepts
Chapter 1 Review
Summary
Vocabulary
Objectives
Review Exercises
Chapter Test
Part 2 Descriptive Statistics
2 Organizing and Summarizing Data
Outline
2.1 Organizing Qualitative Data
Objectives
❶ Organize Qualitative Data in Tables
Problem
Approach
Solution
Problem
Approach
Solution
❷ Construct Bar Graphs
Problem
Approach
Solution
Problem
Approach
Solution
Side-by-Side Bar Graphs
Problem
Approach
Solution
Horizontal Bars
❸ Construct Pie Charts
Problem
Approach
Solution
2.1 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
2.2 Organizing Quantitative Data: The Popular Displays
Objectives
❶ Organize Discrete Data in Tables
Problem
Approach
7
ProfExams
Solution
❷ Construct Histograms of Discrete Data
Problem
Approach
Solution
❸ Organize Continuous Data in Tables
Problem
Approach
Solution
❹ Construct Histograms of Continuous Data
Problem
Approach
Solution
Problem
Approach
Solution
❺ Draw Dot Plots
Problem
Approach
Solution
❻ Identify the Shape of a Distribution
Problem
Approach
Solution
2.2 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
2.3 Additional Displays of Quantitative Data
Objectives
❶ Draw Stem-and-Leaf Plots
Problem
Approach
Solution
Problem
Approach
Solution
Split Stems
❷ Construct Frequency Polygons
❸ Create Cumulative Frequency and Relative Frequency Tables
❹ Construct Frequency and Relative Frequency Ogives
❺ Draw Time-Series Graphs
Problem
Approach
Solution
2.3 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
2.4 Graphical Misrepresentations of Data
8
ProfExams
Objective
❶ Describe What Can Make a Graph Misleading or Deceptive
Problem
Approach
Solution
Problem
Approach
Solution
Problem
Approach
Solution
Problem
Approach
Solution
Problem
Approach
Solution
Problem
Approach
Solution
2.4 Assess Your Understanding
Applying the Concepts
Chapter 2 Review
Summary
Vocabulary
Objectives
Review Exercises
Chapter Test
3 Numerically Summarizing Data
Outline
3.1 Measures of Central Tendency
Objectives
❶ Determine the Arithmetic Mean of a Variable from Raw Data
Problem
Approach
Solution
❷ Determine the Median of a Variable from Raw Data
Problem
Approach
Solution
Problem
Approach
Solution
Problem
Approach
Solution
❸ Explain What It Means for a Statistic to Be Resistant
Problem
Approach
Solution
9
ProfExams
Problem
Approach
Solution
❹ Determine the Mode of a Variable from Raw Data
Problem
Approach
Solution
Problem
Approach
Solution
Problem
Approach
Solution
3.1 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
3.2 Measures of Dispersion
Objectives
Problem
Approach
Solution
❶ Determine the Range of a Variable from Raw Data
Problem
Approach
Solution
❷ Determine the Standard Deviation of a Variable from Raw Data
Problem
Approach Using Conceptual Formula (1)
Solution Using Formula (1)
Approach Using Computational Formula (2)
Solution Using Formula (2)
Problem
Approach
Solution Using Conceptual Formula (3)
Solution Using Computational Formula (4)
Problem
Approach
Solution
Interpretations of the Standard Deviation
Problem
Approach
Solution
❸ Determine the Variance of a Variable from Raw Data
Problem
Approach
Solution
A Final Thought on Variance and Standard Deviation
❹ Use the Empirical Rule to Describe Data That Are Bell Shaped
Problem
10
ProfExams
Approach
Solution
❺ Use Chebyshev’s Inequality to Describe Any Set of Data
Problem
Approach
Solution
3.2 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
3.3 Measures of Central Tendency and Dispersion from Grouped Data
Objectives
❶ Approximate the Mean of a Variable from Grouped Data
Problem
Approach
Solution
❷ Compute the Weighted Mean
Problem
Approach
Solution
➌ Approximate the Standard Deviation of a Variable from Grouped Data
Problem
Approach
Solution
Problem
Approach
Solution
3.3 Assess Your Understanding
Applying the Concepts
3.4 Measures of Position and Outliers
Objectives
❶ Determine and Interpret z-Scores
Problem
Approach
Solution
❷ Interpret Percentiles
Problem
Approach
Interpretation
❸ Determine and Interpret Quartiles
Problem
Approach
Solution
Interpretation
Problem
Approach
Solution
❹ Determine and Interpret the Interquartile Range
Problem
Approach
11
ProfExams
Solution
Interpretation
❺ Check a Set of Data for Outliers
Problem
Approach
Solution
3.4 Assess Your Understanding
Vocabulary
Applying the Concepts
Explaining the Concepts
3.5 The Five-Number Summary and Boxplots
Objectives
❶ Compute the Five-Number Summary
Problem
Approach
Solution
Problem
Approach
Solution
❷ Draw and Interpret Boxplots
Problem
Approach
Solution
Using a Boxplot and Quartiles to Describe the Shape of a Distribution
Problem
Approach
Solution
3.5 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
Chapter 3 Review
Summary
Vocabulary
Formulas
Objectives
Review Exercises
Chapter Test
4 Describing the Relation between Two Variables
Outline
4.1 Scatter Diagrams and Correlation
Objectives
➊ Draw and Interpret Scatter Diagrams
Problem
Approach
Solution
➋ Describe the Properties of the Linear Correlation Coefficient
➌ Compute and Interpret the Linear Correlation Coefficient
Problem
Approach
12
ProfExams
Solution
Problem
Approach
Solution
➍ Determine Whether a Linear Relation Exists between Two Variables
Problem
Approach
Solution
➎ Explain the Difference between Correlation and Causation
Problem
Approach
Solution
4.1 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
4.2 Least-Squares Regression
Objectives
Problem
Approach
Solution
➊ Find the Least-Squares Regression Line and Use the Line to Make Predictions
Problem
Approach
Solution
➋ Interpret the Slope and the y-Intercept of the Least-Squares Regression Line
➌ Compute the Sum of Squared Residuals
Problem
Approach
Solution
4.2 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
4.3 Diagnostics on the Least-Squares Regression Line
Objectives
➊ Compute and Interpret the Coefficient of Determination
Problem
By Hand Approach
By Hand Solution
Technology Approach
Technology Solution
Interpretation
➋ Perform Residual Analysis on a Regression Model
➌ Identify Influential Observations
Problem
Approach
Solution
4.3 Assess Your Understanding
Vocabulary and Skill Building
13
ProfExams
Applying the Concepts
4.4 Contingency Tables and Association
Objectives
➊ Compute the Marginal Distribution of a Variable
Problem
Approach
Solution
Problem
Approach
Solution
➋ Use the Conditional Distribution to Identify Association among Categorical Data
Problem
Approach
Solution
Problem
Approach
Solution
Problem
Approach
Solution
➌ Explain Simpson’s Paradox
Problem
Approach
Solution
4.4 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Chapter 4 Review
Summary
Vocabulary
Formulas
Objectives
Review Exercises
Chapter Test
Part 3 Probability and Probability Distributions
5 Probability
Outline
5.1 Probability Rules
Objectives
❶ Understand Random Processes and the Law of Large Numbers
➋ Apply the Rules of Probabilities
➌ Compute and Interpret Probabilities Using the Empirical Method
Problem
Approach
Solution
❹ Compute and Interpret Probabilities Using the Classical Method
Problem
Approach
Solution
Problem
14
ProfExams
Approach
Solution
Problem
Approach
Solution
❺ Recognize and Interpret Subjective Probabilities
5.1 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
5.2 The Addition Rule and Complements
Objectives
❶ Use the Addition Rule for Disjoint Events
Problem
Approach
Solution
Problem
Approach
Solution
❷ Use the General Addition Rule
Problem
Approach
Solution
Problem
Approach
Solution
❸ Compute the Probability of an Event Using the Complement Rule
Problem
Approach
Solution
Problem
Approach
Solution
5.2 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
5.3 Independence and the Multiplication Rule
Objectives
❶ Identify Independent Events
❷ Use the Multiplication Rule for Independent Events
Problem
Approach
Solution
Problem
Approach
Solution
❸ Compute At-Least Probabilities
Problem
Approach
Solution
15
ProfExams
5.3 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
5.4 Conditional Probability and the General Multiplication Rule
Objectives
❶ Compute Conditional Probabilities
Problem
Approach
Solution
Problem
Approach
Solution
Problem
Approach
Solution
❷ Compute Probabilities Using the General Multiplication Rule
Problem
Approach
Solution
Problem
Approach
Approach I:
Approach II:
Solution
Approach I:
Approach II:
Problem
Approach
Solution
5.4 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
5.5 Counting Techniques
Objectives
❶ Solve Counting Problems Using the Multiplication Rule
Problem
Approach
Solution
Problem
Approach
Solution
Problem
Approach
Solution
❷ Solve Counting Problems Using Permutations
Problem
By Hand Approach
By Hand Solution
Technology Approach
Technology Solution
16
ProfExams
Problem
Approach
Solution
❸ Solve Counting Problems Using Combinations
Problem
Approach
Solution
Problem
By Hand Approach
By Hand Solution
Technology Approach
Technology Solution
Problem
Approach
Solution
❹ Solve Counting Problems Involving Permutations with Nondistinct Items
Problem
Approach
Solution
Problem
Approach
Solution
Summary
❺ Compute Probabilities Involving Permutations and Combinations
Problem
Approach
Solution
Problem
Approach
Solution
5.5 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
5.6 Simulating Probability Experiments
Objective
❶ Use Simulation to Approximate Probabilities
Problem
Approach
Solution
Problem:
Approach:
Solution
5.6 Assess Your Understanding
Applying the Concepts
5.7 Putting It Together: Which Method Do I Use?
Objectives
❶ Determine the Appropriate Probability Rule to Use
Problem
Approach
Solution
17
ProfExams
Problem
Approach
Solution
❷ Determine the Appropriate Counting Technique to Use
Problem
Approach
Solution
Problem
Approach
Solution
5.7 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Chapter 5 Review
Summary
Vocabulary
Formulas
Objectives
Review Exercises
Chapter Test
6 Discrete Probability Distributions
Outline
6.1 Discrete Random Variables
Objectives
❶ Distinguish between Discrete and Continuous Random Variables
❷ Identify Discrete Probability Distributions
Problem
Approach
Solution
❸ Graph Discrete Probability Distributions
Problem
Approach
Solution
❹ Compute and Interpret the Mean of a Discrete Random Variable
Problem
Approach
Solution
❺ Interpret the Mean of a Discrete Random Variable as an Expected Value
Problem
Approach
Solution
Interpretation
❻ Compute the Standard Deviation of a Discrete Random Variable
Problem
Approach
Solution
Approach
Solution
Problem
Approach
18
ProfExams
Solution
6.1 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
6.2 The Binomial Probability Distribution
Objectives
❶ Determine Whether a Probability Experiment Is a Binomial Experiment
Problem
Approach
Solution
❷ Compute Probabilities of Binomial Experiments
Problem
Approach
Solution
Problem
Approach
Solution
Interpretation
Interpretation
Interpretation
Interpretation
❸ Compute the Mean and Standard Deviation of a Binomial Random Variable
Problem
Approach
Solution
Interpretation
❹ Graph a Binomial Probability Distribution
Problem
Approach
Solution
Problem
Approach
Solution
Interpretation
6.2 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
6.3 The Poisson Probability Distribution
Objectives
❶ Determine If a Probability Experiment Follows a Poisson Process
❷ Compute Probabilities of a Poisson Random Variable
Problem
Approach
Solution
Interpretation
Interpretation
Interpretation
❸ Find the Mean and Standard Deviation of a Poisson Random Variable
Problem
19
ProfExams
Approach
Solution
Interpretation
Interpretation
6.3 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Chapter 6 Review
Summary
Vocabulary
Formulas
Objectives
Review Exercises
Chapter Test
7 The Normal Probability Distribution
Outline
7.1 Properties of the Normal Distribution
Objectives
❶ Use the Uniform Probability Distribution
Problem
Approach
Solution
❷ Graph a Normal Curve
❸ State the Properties of the Normal Curve
❹ Explain the Role of Area in the Normal Density Function
Problem
Approach
Solution
Problem
Approach
Solution
7.1 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
7.2 Applications of the Normal Distribution
Objectives
❶ Find and Interpret the Area under a Normal Curve
Problem
By-Hand Approach
By-Hand Solution
Technology Approach
Technology Solution
Problem
By-Hand Approach
By-Hand Solution
Technology Approach
Technology Solution
Interpretation
❷ Find the Value of a Normal Random Variable
Problem
20
ProfExams
By-Hand Approach
By-Hand Solution
Technology Approach
Technology Solution
Problem
By-Hand Solution
Technology Solution
Interpretation
7.2 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
7.3 Assessing Normality
Objective
❶ Use Normal Probability Plots to Assess Normality
Problem
Approach
Solution
Interpretation
Problem
Approach
Solution
7.3 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
7.4 The Normal Approximation to the Binomial Probability Distribution
Objective
❶ Approximate Binomial Probabilities Using the Normal Distribution
Problem
Approach
Solution
Problem
Approach
Solution
7.4 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Chapter 7 Review
Summary
Vocabulary
Formulas
Objectives
Review Exercises
Chapter Test
Part 4 Inference: From Samples to Population
8 Sampling Distributions
Outline
8.1 Distribution of the Sample Mean
Objectives
➊ Describe the Distribution of the Sample Mean: Normal Population
21
ProfExams
Problem
Approach
Solution
Problem
Approach
Solution
Problem
Approach
Solution
Interpretation
➋ Describe the Distribution of the Sample Mean: Nonnormal Population
Problem
Approach
Solution
Problem
Approach
Solution
Interpretation
8.1 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
8.2 Distribution of the Sample Proportion
Objectives
➊ Describe the Sampling Distribution of a Sample Proportion
Problem
Approach
Solution
Problem
Approach
Solution
Problem
Approach
Solution
➋ Compute Probabilities of a Sample Proportion
Problem
Approach
Solution
Interpretation
Interpretation
8.2 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Chapter 8 Review
Summary
Vocabulary
Formulas
Objectives
Review Exercises
Chapter Test
22
ProfExams
9 Estimating the Value of a Parameter
Outline
9.1 Estimating a Population Proportion
Objectives
❶ Obtain a Point Estimate for the Population Proportion
Problem
Approach
Solution
❷ Construct and Interpret a Confidence Interval for the Population Proportion
Problem
Approach
Solution
Problem
By Hand Approach
By-Hand Solution
Technology Approach
Technology Solution
❸ Determine the Sample Size Necessary for Estimating a Population Proportion within a Specified Margin of Error
Problem
Approach
Solution
9.1 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
9.2 Estimating a Population Mean
Objectives
❶ Obtain a Point Estimate for the Population Mean
Problem
Approach
Solution
❷ State Properties of Student’s t-distribution
Solution
❸ Determine t-Values
Problem
Approach
Solution
❹ Construct and Interpret a Confidence Interval for a Population Mean
❺ Determine the Sample Size Needed to Estimate a Population Mean within a Specified Margin of Error
Problem
Approach
Solution
9.2 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
9.3 Estimating a Population Standard Deviation
Objectives
❶ Find Critical Values for the Chi-Square Distribution
Problem
23
ProfExams
Approach
Solution
❷ Construct and Interpret Confidence Intervals for the Population Variance and Standard Deviation
Problem
Approach
By-Hand Approach
Technology Approach
Solution
By-Hand Solution
Technology Solution
Interpretation
9.3 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
9.4 Putting It Together: Which Method Do I Use?
Objective
❶ Determine the Appropriate Confidence Interval to Construct
Problem
Approach
Solution
By-Hand Solution
Technology Solution
Interpretation
9.4 Assess Your Understanding
Skill Building
Applying the Concepts
9.5 Estimating with Bootstrapping
Objective
❶ Estimate a Parameter Using the Bootstrap Method
Problem
Approach
Solution
Interpretation
Problem
Approach
Solution
9.5 Assess Your Understanding
Vocabulary
Skill Building
Applying the Concepts
Chapter 9 Review
Summary
Vocabulary
Formulas
Objectives
Review Exercises
Chapter Test
10 Hypothesis Tests Regarding a Parameter
Outline
10.1 The Language of Hypothesis Testing
24
ProfExams
Objectives
Problem
Approach
Solution
❶ Determine the Null and Alternative Hypotheses
Problem
Approach
Solution
❷ Explain Type I and Type II Errors
Problem
Approach
Solution
The Probability of Making a Type I or Type II Error
❸ State Conclusions to Hypothesis Tests
Problem
Approach
Solution
10.1 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
10.2 Hypothesis Tests for a Population Proportion
Objectives
❶ Explain the Logic of Hypothesis Testing
❷ Test Hypotheses about a Population Proportion
Problem
Approach
Solution
Classical Approach
P-Value Approach
Problem
Approach
Solution
Classical Approach
P-Value Approach
❸ Test Hypotheses about a Population Proportion Using the Binomial Probability Distribution
Problem
Approach
Solution
10.2 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
10.3 Hypothesis Tests for a Population Mean
Objectives
❶ Test Hypotheses about a Mean
Problem
Approach
Solution
Classical Approach
25
ProfExams
P-Value Approach
Problem
Approach
Solution
Classical Approach
P-Value Approach
❷ Understand the Difference between Statistical Significance and Practical Significance
Problem
Approach
Solution
Classical Approach
P-Value Approach
10.3 Assess Your Understanding
Skill Building
Applying the Concepts
Explaining the Concepts
10.4 Hypothesis Tests for a Population Standard Deviation
Objective
❶ Test Hypotheses about a Population Standard Deviation
Problem
Approach
Solution
Classical Approach
P-Value Approach
10.4 Assess Your Understanding
Skill Building
Applying the Concepts
10.5 Putting It Together: Which Method Do I Use?
Objective
❶ Determine the Appropriate Hypothesis Test to Perform
10.5 Assess Your Understanding
Skill Building
Applying the Concepts
10.6 The Probability of a Type II Error and the Power of the Test
Objectives
❶ Determine the Probability of Making a Type II Error
Problem
Approach
Solution
❷ Compute the Power of the Test
Problem
Approach
Solution
10.6 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
Chapter 10 Review
Summary
Vocabulary
26
ProfExams
Formulas
Objectives
Review Exercises
Chapter Test
11 Inference on Two Population Parameters
Outline
11.1 Inference about Two Population Proportions
Objectives
❶ Distinguish between Independent and Dependent Sampling
Problem
Approach
Solution
❷ Test Hypotheses Regarding Two Proportions from Independent Samples
Problem
Approach
Solution
Classical Approach
P-Value Approach
❸ Construct and Interpret Confidence Intervals for the Difference between Two Population Proportions
Problem
Approach
Solution
By-Hand Solution
Technology Solution
Interpretation
❹ Determine the Sample Size Necessary for Estimating the Difference between Two Population Proportions
Problem
Approach
Solution
11.1 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
11.2 Inference about Two Means: Dependent Samples
Objectives
❶ Test Hypotheses for a Population Mean from Matched-Pairs Data
Problem
Approach
Solution
Classical Approach
P-Value Approach
❷ Construct and Interpret Confidence Intervals about the Population Mean Difference of Matched-Pairs Data
Problem
By Hand Approach
By-Hand Solution
Technology Approach
Technology Solution
11.2 Assess Your Understanding
Skill Building
Applying the Concepts
27
ProfExams
11.3 Inference about Two Means: Independent Samples
Objectives
➊ Test Hypotheses Regarding the Difference of Two Independent Means
Problem
Approach
Solution
Classical Approach
P-Value Approach
➋ Construct and Interpret Confidence Intervals Regarding the Difference of Two Independent Means
Problem
Approach
Solution
By Hand
Technology
11.3 Assess Your Understanding
Skill Building*
Applying the Concepts
Explaining the Concepts
11.4 Inference about Two Population Standard Deviations
Objectives
❶ Find Critical Values of the F-distribution
Problem
Approach
Solution
❷ Test Hypotheses Regarding Two Population Standard Deviations
Problem
Approach
Solution
Classical Approach
P-Value Approach
Problem
Approach
Solution
Classical Approach
P-Value Approach Using Technology
11.4 Assess Your Understanding
Skill Building
Applying the Concepts
11.5 Putting It Together: Which Method Do I Use?
Objective
➊ Determine the Appropriate Hypothesis Test to Perform
11.5 Assess Your Understanding
Skill Building
Applying the Concepts
Explaining the Concepts
Chapter 11 Review
Summary
Vocabulary
Formulas
Objectives
28
ProfExams
Review Exercises
Chapter Test
12 Inference on Categorical Data
Outline
12.1 Goodness-of-Fit Test
Objective
➊ Perform a Goodness-of-Fit Test
Problem
Approach
Solution
Problem
Approach
Solution
Classical Approach
P-Value Approach
Problem
Approach
Solution
Classical Approach
P-Value Approach
12.1 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
12.2 Tests for Independence and the Homogeneity of Proportions
Objectives
➊ Perform a Test for Independence
Problem
Approach
Solution
Problem
Approach
Solution
Classical Approach
P-Value Approach
Problem
Approach
Solution
➋ Perform a Test for Homogeneity of Proportions
Problem
Approach
Solution
Classical Approach
P-Value Approach
12.2 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
12.3 Inference about Two Population Proportions: Dependent Samples
Objective
29
ProfExams
➊ Test Hypotheses Regarding Two Proportions from Dependent Samples
Problem
Approach
Solution
Classical Approach
P-Value Approach
12.3 Assess Your Understanding
Skill Building
Applying the Concepts
Chapter 12 Review
Summary
Vocabulary
Formulas
Objectives
Review Exercises
Chapter Test
13 Comparing Three or More Means
Outline
13.1 Comparing Three or More Means (One-Way Analysis of Variance)
Objectives
❶ Verify the Requirements to Perform a One-Way ANOVA
Problem
Approach
Solution
❷ Test a Hypothesis Regarding Three or More Means Using One-Way ANOVA
13.1 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
13.2 Post Hoc Tests on One-Way Analysis of Variance
Objective
❶ Perform the Tukey Test
Problem
Approach
Solution
Problem
Approach
Solution
Problem
Approach
Solution
13.2 Assess Your Understanding
Skill Building
Applying the Concepts
13.3 The Randomized Complete Block Design
Objectives
❶ Conduct Analysis of Variance on the Randomized Complete Block Design
Problem
Approach
Solution
30
ProfExams
❷ Perform the Tukey Test
Problem
Approach
Solution
13.3 Assess Your Understanding
Skill Building
Applying the Concepts
Explaining the Concepts
13.4 Two-Way Analysis of Variance
Objectives
❶ Analyze a Two-Way ANOVA Design
Problem
Approach
Solution
❷ Draw Interaction Plots
Problem
By-Hand Approach
By Hand Solution
Technology Approach
Technology Solution
Interpretation
Problem
Approach
Solution
❸ Perform the Tukey Test
Problem
Approach
Solution
13.4 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
Chapter 13 Review
Summary
Vocabulary
Formulas
Objectives
Review Exercises
Chapter Test
14 Inference on the Least-Squares Regression Model and Multiple Regression
Outline
14.1 Testing the Significance of the Least-Squares Regression Model
Objectives
Problem
Approach
Solution
➊ State the Requirements of the Least-Squares Regression Model
➋ Compute the Standard Error of the Estimate
Problem
Approach
31
ProfExams
Solution
Problem
Approach
Solution
➌ Verify That the Residuals Are Normally Distributed
Problem
Approach
Solution
➍ Conduct Inference on the Slope of the Least-Squares Regression Model
Problem
Approach
Solution
Classical Approach
P -Value Approach
➎ Construct a Confidence Interval about the Slope of the Least-Squares Regression Model
Problem
By-Hand Approach
By-Hand Solution
Technology Approach
Technology Solution
14.1 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
14.2 Confidence and Prediction Intervals
Objectives
➊ Construct Confidence Intervals for a Mean Response
Problem
Approach
Solution
➋ Construct Prediction Intervals for an Individual Response
Problem
Approach
Solution
Problem
Approach
Solution
14.2 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
14.3 Introduction to Multiple Regression
Objectives
➊ Obtain the Correlation Matrix
Problem
Approach
Solution
➋ Use Technology to Find a Multiple Regression Equation
Problem
Approach
Solution
32
ProfExams
➌ Interpret the Coefficients of a Multiple Regression Equation
Problem
Approach
Solution
➍ Determine R2 and Adjusted R2
Problem
Approach
Solution
➎ Perform an F-Test for Lack of Fit
Problem
Approach
Solution
➏ Test Individual Regression Coefficients for Significance
Problem
Approach
Solution
➐ Construct Confidence and Prediction Intervals
Problem
Approach
Solution
14.3 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
14.4 Interaction and Dummy Variables
Objectives
➊ Work with Multiple Regression Models with Interaction
Problem
Solution
➋ Build Multiple Regression Models with Indicator Variables
Problem
Solution
14.4 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
14.5 Polynomial Regression
Objective
➊ Find a Quadratic Regression Equation
Approach
Solution
14.5 Assess Your Understanding
Skill Building
Applying the Concepts
14.6 Building a Regression Model
Objectives
➊ Perform a Partial F-test
Problem
Approach
Solution
33
ProfExams
➋ Build a Regression Model
Problem
Approach
Solution
Problem
Approach
Solution
Problem
Approach
Solution
14.6 Assess Your Understanding
Skill Building
Chapter 14 Review
Summary
Vocabulary
Formulas
Objectives
Review Exercises
Chapter Test
15 Nonparametric Statistics
Outline
15.1 An Overview of Nonparametric Statistics
Objective
❶ Distinguish between Parametric and Nonparametric Statistical Procedures
15.1 Assess Your Understanding
Explaining the Concepts
15.2 Runs Test for Randomness
Objective
❶ Perform a Runs Test for Randomness
Problem
Approach
Solution
Problem
Approach
Solution
Problem
Approach
Solution
By-Hand Approach
Technology Approach
Problem
Approach
Solution
15.2 Assess Your Understanding
Vocabulary and Skill Building
Applying the Concepts
Explaining the Concepts
15.3 Inference about Measures of Central Tendency
Objectives
❶ Conduct a One-Sample Sign Test
34
ProfExams
Problem
Approach
Solution
By-Hand Solution
Technology Solution
15.3 Assess Your Understanding
Skill Building
Applying the Concepts
Explaining the Concepts
15.4 Inference about the Difference between Two Medians: Dependent Samples
Objective
❶ Test a Hypothesis about the Difference between the Medians of Two Dependent Samples
Problem
Approach
Solution
By-Hand Solution
Technology (P-value) Solution
15.4 Assess Your Understanding
Skill Building
Applying the Concepts
15.5 Inference about the Difference between Two Medians: Independent Samples
Objective
❶ Test a Hypothesis about the Difference between the Medians of Two Independent Samples
Problem
Approach
Solution
By-Hand Approach
Technology Approach
Problem
Approach
Solution
15.5 Assess Your Understanding
Skill Building
Applying the Concepts
Explaining the Concepts
15.6 Spearman’s Rank-Correlation Test
Objective
❶ Perform Spearman’s Rank-Correlation Test
Problem
Approach
Solution
15.6 Assess Your Understanding
Skill Building
Applying the Concepts
Explaining the Concepts
15.7 Kruskal–Wallis Test
Objective
❶ Test a Hypothesis Using the Kruskal–Wallis Test
Problem
Approach
35
ProfExams
Solution
By-Hand Approach
Technology Approach
15.7 Assess Your Understanding
Skill Building
Applying the Concepts
Chapter 15 Review
Summary
Vocabulary
Formulas
Objectives
Review Exercises
Chapter Test
ProfExams
SHOULD THIS DOCUMENT NOT BE SATISFACTORY KINDLY CONTACT US FOR THE CORRECT DOCUMENTS. WE WILL GLADLY OBLIGE. Thankyou.
1
Test Bank for Statistics - Informed Decisions Using Data 6th Edition-Sullivan III
Exam
Name
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
Provide an appropriate response.
1) What is statistics? 1)
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
2) Which of the following is not true of statistics?
A) Statistics involves collecting and summarizing data.
B) Statistics is about providing a measure of confidence in any conclusions
C) Statistics is used to answer questions with 100% certainty.
D) Statistics can be used to organize and analyze information.
2)
Determine whether the underlined value is a parameter or a statistic.
3) In a survey conducted in the town of Atherton, 23% of adult respondents reported that they had been involved in at least one car accident in the past ten years.
A) parameter B) statistic
3)
4) 23.2% of the mayors of cities in an entire certain state are from minority groups.
A) parameter B) statistic
4)
5) A study of 2,700 college students in the city of Pemblington found that 9% had been victims of violent crimes.
A) parameter B) statistic
5)
6) 51.6% of all the residents of Idlington Garden City are female.
A) statistic B) parameter
6)
7) Telephone interviews of 316 employees of a large electronics company found that 45% were dissatisfied with their working conditions.
A) parameter B) statistic
7)
8) The average age of the 65 students in Ms. Hope's political science class is 21 years 8 months.
A) parameter B) statistic
8)
9) Mark retired from competitive athletics last year. In his whole career as a sprinter he had competed in the 100-meters event a total of 328 times. His average time for these 328 races was 10.25 seconds.
A) statistic B) parameter
9)
2
Test Bank for Statistics - Informed Decisions Using Data 6th Edition-Sullivan III
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
Provide an appropriate response.
10) A survey of 1,805 American households found that 71% of the households own a DVD recorder. Identify the population, the sample, and the individuals in the study.
10)
11) A survey of 1,242 American households found that 32% of the households own at least two bicycles. Identify the population, the sample, and the individuals in the study.
11)
[Show More]
.png)
.png)
