WGU C207 Quizes Latest 2023 Already Passed

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WGU C207 Quizes Latest 2023 Already Passed For companies to attract and retain their best customers they need a complete portrait of who they are. To develop this portrait companies turn to ✔✔A ... nalytics A manufacturer wants to maximize their factory output while specifically minimizing labor costs. What type of analytics might they employ to achieve this goal? ✔✔Prescriptive Analytics What type of data error that occurs in measurement is constant within a data set and is sometimes caused by faulty equipment or bias? ✔✔Systematic An Educator develops a new standardized test to measure math skills of ninth graders. She has students in her home state of Ohio take the test. If the test is to be used on a national level, what type of error might be found in her data? ✔✔Measurement Bias A city government is trying to determine the national origins of its recent immigrant population. If a survey of the immigrant population is conducted in English what type of error might be present in the data? ✔✔Omission The use of Big Data is increasingly important to businesses in competitive markets. Which of the following characteristics is not true of big data? ✔✔Can be analyzed with traditional spreadsheets The Davenport-Kim three-stage model consists of framing the problem, solving the problem, and communicating results. Which two of the following are part of framing the problem stage? ✔✔Determine the scope of the problem Review of previous findings A healthcare provider is researching blood glucose levels before and after exercising. What two elements should be part of any experimental study such as this? ✔✔Treatment procedures Experimental response Runners cover 26.2 miles in the Olympics marathon. What level of measurement is this? ✔✔Ratio What level of measurement is the type of cars produced in Ford factory? ✔✔Nominal What level of measurement is this the 10 best cities in the U.S. to retire in? ✔✔Ordinal What level of measurement are women's dress sizes (2,4,6, etc.)? ✔✔Interval A local school board is studying the impact of a proposed change in testing on math scores. Bias can be introduced into the study by both students and teachers. Which research technique would eliminate this type of bias? ✔✔Double blind study A Company's product development team test 3 new car waxes by waxing 5 cars with each wax and then running them through a car wash. They then record number of washes it takes before the wax begins to deteriorate. What is the term for the five cars? ✔✔The experimental unit An online retailer selling workout apparel has a large increase in sales during December and declares that their weekly newspaper ad resulted in higher sales. What misuse of statistics may the retailer have used in making this decision? 0/1 ✔✔Association and Causation An educator collects eighth grade math scores from a local school and used this data to recommend curriculum changes for grades 8 - 12. What misuse of statistics may the educator have used in making this recommendation? ✔✔Not a representative sample An economist wishes to study the distribution of household income in a Midwestern city. He randomly selects a sample from 12 households. He notices two large incomes in his sample. Which measure best represents the middle of the incomes? ✔✔Median A cable company offers its customers both cable television and internet. What statistical rule should be used to determine the probability that customers will have both cable television and internet? ✔✔Multiplication A department store is considering a new credit policy to reduce defaults on payments. Its records show that 95% of defaults have at least 2 late payments. Also, 3% of all customers default and 30% of those customers who have not defaulted have a least 2 late payments. What statistical rule should be used to find the probability that a customer will default given that at least 2 payments were late? ✔✔Bayes Theorem Based on quality checks at plastic bags manufacturer, the breaking strength of their bags has a mean of 50.5 and a standard deviation of 1.6. A customer's test of the bags finds bag strength of 54.2 or less. Which statistical measure should be used to help determine the probability of the customer's test occurring? ✔✔z-score The revenue of NBA teams ranges from $226 million for the New York Knicks to $92 million for the Milwaukee Bucks. Which statistic would measure how far each team's revenue is from the NBA revenue mean? ✔✔Variance A local plumbing company is analyzing to see how the number weeks taken for their payment receipts is distributed. Which graphical analysis technique should they use? ✔✔Histogram A loan officer compares the interest rates for 48 month fixed-rate loans and 48 month variablerate auto loans. Two independent, random samples of auto loans are selected. Which two results happen when the null hypothesis is rejected using a t-test? (Pick 2) ✔✔The null hypothesis is rejected given a probability of being wrong The test statistic is greater than the critical value An online marketing organization designed a social media that wants to earn at least $250,000 in revenue. The campaign will reach 10,000 viewers and receive orders with a mean of $50 and standard deviation $10. Which measure should be used to determine the probability of the campaign receiving at least $250,000? ✔✔Z-score What does it mean when an individual data point has a z-score of +1? ✔✔The data point is one standard deviation greater than the mean of the data set. A descriptive graph depicting whether there is a correlation or relationship between two variables, such as car mileage and resale price would be: ✔✔Scatterplot A food chain finds that there is a strong positive correlation between average daily sales for their pizza store and the number of daily visits to their website. What should be considered before the pizza chain can conclude that the daily sales are driving the number of visits to their website (or vice versa)? ✔✔Is there a causal relationship between sales and site visits? How are z-scores from a population with normal distribution distributed? ✔✔Normal Distribution with mean 0 standard deviation 1 A stock broker offers two portfolios for his clients. There are various risks with each portfolio and his is trying to minimize the risk of loss. Both portfolios have the same mean return.Which measure should the employee use to decide between these alternatives? ✔✔Variance A comparison between the effectiveness of online vs. newspaper coupons was conducted over a 3 month period to see which method brought in greater average revenue per customer.Which statistic should the pizza manager recommend use to determine promotional method to use? ✔✔T-test Which type of distribution would you expect to see if mean=mode=median? ✔✔Normal distribution Two variables are plotted on a scatterplot and the points on the plot closely follow an upward, straight line. What is the likely correlation between the two variables? ✔✔Close to 1.0 Which of the following statistics are robust to minimize the effect of a single large outlier? (More than one answer) ✔✔Median Interquartile range Mode A craftsman builds two kinds of birdhouses. One for bluebirds and one for cardinals. He knows the amount of labor and the units of lumber that are needed for each birdhouse. The craftsman has available 60 hours of labor and 120 units of lumber. Which technique should the craftsman use to minimize cost? ✔✔Linear Programming Ski Boards, Inc. wants to enter the market quickly with a new finish on its ski boards. It has three choices: refurbish the old equipment, make major modifications or purchase new equipment. The company has estimated the fixed and variable cost for each option. Which technique should they use to select the least costly option? ✔✔Cross Over Which analysis technique can be used with hypothesis testing when nominal or categorical data is gathered? ✔✔Chi-square United Motors indicates that gas mileage tests of one of their cars, the Starbird 300, under city driving conditions has a mean of 30 mph and a median of 29.9 mph. Which type of distribution would this testing represent? ✔✔Normal distribution North American Oil Company is attempting to develop a reasonably priced gasoline that will deliver improved gasoline mileage. As part of its development process, the company would like to compare the effects of three types of gasoline. Which analysis technique should the company use to compare the performances of each gasoline type? ✔✔ANOVA A large manufacturer wants to forecast demand for a piece of pollution-control equipment. A review of the past 12 months of sales indicates that sales are increasing. What time series pattern does the sales likely exhibit? ✔✔Trend A car dealership wishes to forecast car sales based upon price discounts and television ads. What forecasting technique should the dealership use? ✔✔Multiple Regression Analysis A company uses time series analysis to develop its product forecast. The forecaster uses simple linear regression but notices that the past data trend is aligned with advertising expenditures. What issue might exist with this regression analysis? ✔✔Autocorrelation A business entrepreneur wishes to predict yearly revenue for potential Sub Restaurant sites. He performs a regression analysis based upon the area's population and business rating. What statistic indicates the strength of the relationship of population and rating to revenue? ✔✔R - square A researcher is evaluating voter turnout based upon age and location of voting precincts. Which analysis technique should she use? ✔✔Cluster Analysis An entrepreneur is thinking about starting an independent gasoline station and considering how large the station should be. The annual return will depend upon the size of station and a number of marketing factors related to the oil industry and demand for gasoline. What analysis technique should be used to evaluate station size given the uncertainty of oil industry and demand factors? ✔✔Decision Analysis After traveling down the Mississippi River, barges randomly arrive in New Orleans and are unloaded on a first-in, first-out basis. Any barges not unloaded on the day of arrival must wait until the following day incurring additional cost and negatively affecting customer service. The dock superintendent wants to use analytics to support a request for additional unloading crews. What analysis technique should he use? ✔✔Simulation A Boston Hallmark store is preparing a budget for the next year and needs to forecast sales. The store notices variation in sales around holidays. What pattern describes the data to be forecasted? ✔✔Seasonality What result do business quality teams expect when using quality tools? ✔✔Minimize errors through collection and analysis of data A local restaurant is attempting to reduce the time from taking a customer's order to delivery of the order. Which quality tool should the restaurant use to study their order process? ✔✔Flow Chart Which type of quality activity would assess capabilities and recommend process design changes as preventive action? ✔✔Quality assurance activity Which of the Seven Basic Quality Tools is used to exhibit the relationship between two variables? ✔✔Scatter Diagram Which quality tool is an organized method for collecting data? ✔✔Check Sheet After collecting data and performing statistical analysis in a company's assembly department, a quality team recommends processing changes to reduce defects. The team proposes a pilot program to evaluate the effectiveness of their recommendations. Which step of the Plan-DoCheck-Act model does the pilot program represent? ✔✔Do Which two statements describe how a process approach and a commitment to continuous improvement enhance quality? ✔✔Efficiently achieving results Creates the best possible product Which statement is not true of the Seven Basic Tools of Quality? ✔✔The tools are based on statistics A maker of computer chips develops a new training program to assure that quality standards are met. Which of the following activities is the training program an example of? ✔✔Quality assurance activity A recent poll of 519 adults who flew in the past year found they ranked the following as their number 1 complaint: cramped seats (45), cost (16), fear of flying (57), security measures (119), poor service (12), connecting flight problems (8), overcrowded planes (42), late planes (57), food (7), and other (51). Which technique would be used display a ranking of the complaints? ✔✔Pareto chart A Charity is evaluating the effectiveness of its annual walk promotional campaign, in increasing walk participants and donations.What is the appropriate tool for evaluating performance? ✔✔Results-based management An online Active Wear retailer wants to use their last year's sales to evaluate consumer trends before ordering merchandise for fall season. What process should they use to discover consumer purchasing patterns? ✔✔Data mining City Line Transport wants to look at its fuel costs for 2013, 2014 and 2015 against the start-up base period of 2012. What analytic method should the company use? ✔✔Simple Index An International Health Organization is concerned about the spread of the Zika virus in South America as mosquito season approaches. It proposes measuring the growth of new cases for the total population over the next six months. What type of analytics would this represent? ✔✔Cumulative Incidence Which measurement may be used by potential home buyers to evaluate the price of homes on the market? ✔✔Price per square foot At WGU, students take objective assessments to evaluate a student's knowledge of predetermined course competencies in relation to a cut score. What type of test is the objective assessment? ✔✔Criterion-referenced A High School principal wishes to study the math and science performance of individual 12th grade students by comparing their scores across multiple courses. Which analysis technique should the principal use: ✔✔z-score The town council of a beach town is studying whether to dredge the canals of an ocean front community that were filled with sand during a hurricane. What analytic method can the council apply to this issue? ✔✔Cost-benefit analysis A manufacturer of running shoes is implementing lean operation concepts into their production process. Which critical success factor would assure a smooth transition into the new program? ✔✔Understand customer needs and wants A retail chain seeks to improve store performance by growing sales and improving customer service. Which tool would specifically meet the chain's objective of improving store sales growth? ✔✔Key performance indicator An Online retailer seeks to improve its Amazon customer services rating. What two key performance indicators should the retailer measure? ✔✔Measure on time delivery Measure customer return rate An Organization seeks to shift its business strategy to development of new products for the future while still growing sales of its current products. Which tool could help the company focus on both its financial objective and growth of new products? ✔✔Balanced Scorecard A rural town seeks to deploy a new citizen relationship program within its Fire and EMT department. How could the citizen relationship program help the town service citizen's emergencies? ✔✔It could reduce response times A Pizza Chain wishes to improve sales by focusing on product quality, reducing delivery time and improving productivity. Which tool would best meet the Chain's objective of quantifying their improvement in product quality only? ✔✔Key Performance Indicator What are two disadvantages of a Balanced Scorecard? ✔✔Sometimes difficult to maintain momentum May not encourage desired behavior changes What are two advantages of Key Performance Indicators (KPI)? ✔✔Educate management on company performance Data-driven results make it easier to quantify performance Which two examples exhibit appropriate use of performance measures in business? ✔✔A hospital measure Emergency Room response time for improvement Nonprofit analyze expenses to increase the percent of funds donated Which two statements indicate when it is appropriate to use a KPI Dashboard? ✔✔When more than a single chart, graph or piece of data are integral to making business decisions. When visual representation is needed to see if an organization is meeting the goals A retailer wants to evaluate the strength of its customer relations to see how the company compares to others in the industry. Which analysis technique could help the retailer with this decision? ✔✔Net Promoter Score A Manufacturer needs to closely manage product cost to maintain profit margins in a highly competitive market. Which two key performance indicators should management use to control product cost? ✔✔Measure employee productivity Measure production waste [Show More]

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