MATH 221 Homework_ Statistics for Decision-Making Week 1 | Grade A Formula

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MATH 221 Homework_ Statistics for Decision-Making 1 | Grade A Formula A recent survey of the alumni of a university inOf all DeVry students, a study found that 43% of them are business majors. The 4... 3% would be considered a: dicated that the average salary of 10,000 of its 200,000 graduates was $130,000. The $130,000 would be considered a: Based on past experience, it is predicted that 31% of registered voters in Oklahoma will vote in the next primary. The 31% would be considered an example of: WEEK 1: HOMEWORK MATH 221 Homework_ Statistics for Decision-Making Week 1 This attempt took 15 minutes. Question 1 2 / 2 pts A recent survey of the alumni of a university indicated that the average salary of 10,000 of its 200,000 graduates was $130,000. The $130,000 would be considered a: Sample Population Correct! Statistic Parameter Correct Answe You Answered Based on past experience, it is predicted that 31% of registered voters in Oklahoma will vote in the next primary. The 31% would be considered an example of: Descriptive statistics Correct! Inferential statistics Qualitative data A sample Question 4 2 / 2 pts The milligrams of tar in 30 cigarettes would be considered: Nominal data Ordinal data Interval data Correct! Ratio data Question 5 2 / 2 pts Marriage status (married, single, etc.) of the faculty at a university would be considered: Correct! Qualitative data Ordinal data Ratio data Quantitative data Question 6 2 / 2 pts The amount of fat in grams in 58 cookies would be considered: Correct! Ratio data Interval data Nominal data Ordinal data Correct! A 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. This study design would be considered: Experimental Simulation Observational Correct! Survey Correct! Correct! Correct! Correct! If data set A has a smaller standard deviation than data set B, what would be different about their distributions? Data set A would have a larger mean Correct! Data set A would have more data near the center of the distribution Data set A would have flatter distribution with more data in each tail Data set A would have most of its data to one side of the distribution Correct! Which of the following data sets would you expect to have the highest standard deviation? Correct! Ages of people taking college classes (in years) Amount of soda in an unopened can (in ounces) The number of phones a person owns Weight of an orange (in ounces) Correct! In manufacturing, cluster sampling could be used to determine if the machines are operating correctly. Which of the following best describes this type of sampling? Correct! Products are put into groups and all are included from several randomly selected groups Products are put into groups and some are randomly selected from each group Samples are randomly selected throughout the day Every 10th product in the line is selected Correct! Question 19 Match the terms and their definitions 2 / 2 pts Correct! Vertical bar chart that shows frequency on the y- axis Histogram Correct! A sample where the population is divided into groups and several groups are randomly selected from all from those selected groups are sampled Cluster sample Correct! Collection of all counts that are of interest Population Correct! A subset or part of a population Correct! A sample where the population is divided into groups and several are randomly sampled form each group Correct! Consists of attributes, labels, or nonnumerical entries Question 20 Match the terms and their definitions 2 / 2 pts Correct! The most frequent number appearing in a dataset Mode Correct! The average Mean Correct! The percentage of data that falls within 1, 2, or 3 standard deviations of the mean in a symmetrical, bell-shaped distribution Empirical Rule Correct! The square root of the variance Standard deviation Correct! Show how far a particular data point is from the mean in terms of the Standard score number of standard deviations Quiz Score: 38 out of 40 [Show More]

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