Math

StatisticsSTATISTICS F/BUSINESS+ECONOMICS-TEXTAccording to the University of Nevada Center for Logistics Management, 6% of all merchandise sold in the United States gets returned. A Houston department store sampled 80 items sold in January and found that 12 of the items were returned. a. Construct a point estimate of the proportion of items returned for the population of sales transactions at the Houston store. b. Construct a 95% confidence interval for the proportion of returns at the Houston store. c. Is the proportion of returns at the Houston store significantly different from the returns for the nation as a whole? Provide statistical support for your answer.BuyFind*launch*

13th Edition

Anderson

Publisher: CENGAGE L

ISBN: 9781305881884

Chapter 9.5, Problem 42E

Textbook Problem

According to the University of Nevada Center for Logistics Management, 6% of all merchandise sold in the United States gets returned. A Houston department store sampled 80 items sold in January and found that 12 of the items were returned.

- a. Construct a point estimate of the proportion of items returned for the population of sales transactions at the Houston store.
- b. Construct a 95% confidence interval for the proportion of returns at the Houston store.
- c. Is the proportion of returns at the Houston store significantly different from the returns for the nation as a whole? Provide statistical support for your answer.

STATISTICS F/BUSINESS+ECONOMICS-TEXT

Ch. 9.1 - The manager of the Danvers-Hilton Resort Hotel...Ch. 9.1 - The manager of an automobile dealership is...Ch. 9.1 - A production line operation is designed to fill...Ch. 9.1 - Because of high production-changeover time and...Ch. 9.2 - Duke Energy reported that the cost of electricity...Ch. 9.2 - The label on a 3-quart container of orange juice...Ch. 9.2 - Carpetland salespersons average 8000 per week in...Ch. 9.2 - Suppose a new production method will be...Ch. 9.3 - consider the following hypothesis test: H0: 20...Ch. 9.3 - Consider the following hypothesis test: H0: 25...

Ch. 9.3 - Consider the following hypothesis test: H0: = 15...Ch. 9.3 - Consider the following hypothesis test: H0: 80...Ch. 9.3 - Consider the following hypothesis test: H0: 50...Ch. 9.3 - Consider the following hypothesis test: H0: = 22...Ch. 9.3 - Individuals filing federal income tax returns...Ch. 9.3 - In a study entitled How Undergraduate Students Use...Ch. 9.3 - The mean hourly wage for employees in...Ch. 9.3 - Young millennials, adults aged 18 to 34, are...Ch. 9.3 - The Internal Revenue Service (IRS) provides a...Ch. 9.3 - Annual expenditure for prescription drugs was 838...Ch. 9.3 - Fowle Marketing Research, Inc., bases charges to a...Ch. 9.3 - CCN and ActMedia provided a television channel...Ch. 9.4 - Consider the following hypothesis test: H0: 12...Ch. 9.4 - Consider the following hypothesis test: H0: = 18...Ch. 9.4 - Consider the following hypothesis test: H0: 45...Ch. 9.4 - Consider the following hypothesis test: H0: = 100...Ch. 9.4 - Which is cheaper: eating out or dining in? The...Ch. 9.4 - A shareholders group, in lodging a protest,...Ch. 9.4 - The national mean annual salary for a school...Ch. 9.4 - The time married men with children spend on child...Ch. 9.4 - The Coca-Cola Company reported that the mean per...Ch. 9.4 - According to the National Automobile Dealers...Ch. 9.4 - The mean annual premium for automobile insurance...Ch. 9.4 - Joans Nursery specializes in custom-designed...Ch. 9.5 - Consider the following hypothesis test: H0: p =...Ch. 9.5 - Consider the following hypothesis test: H0: p .75...Ch. 9.5 - The U.S. Bureau of Labor Statistics reports that...Ch. 9.5 - A study by Consumer Reports showed that 64% of...Ch. 9.5 - What percentage of the population live in their...Ch. 9.5 - Last year, 46% of business owners gave a holiday...Ch. 9.5 - Ten years ago 53% of American families owned...Ch. 9.5 - According to the University of Nevada Center for...Ch. 9.5 - Eagle Outfitters is a chain of stores specializing...Ch. 9.5 - One of the reasons health care costs have been...Ch. 9.5 - The American Association of Individual Investors...Ch. 9.6 - consider the following hypothesis test. H0: 10...Ch. 9.6 - Consider the following hypothesis test. H0: = 20...Ch. 9.6 - Fowle Marketing Research, Inc., bases charges to a...Ch. 9.6 - A consumer research group is interested in testing...Ch. 9.6 - Young Adult magazine states the following...Ch. 9.6 - Refer to exercise 48. Assume the firm selects a...Ch. 9.6 - Sparr Investments, Inc., specializes in...Ch. 9.7 - Consider the following hypothesis test. H0: 10...Ch. 9.7 - Consider the following hypothesis test. H0: = 20...Ch. 9.7 - Suppose the project director for the Hilltop...Ch. 9.7 - A special industrial battery must have a life of...Ch. 9.7 - Young Adult magazine states the following...Ch. 9.7 - An automobile mileage study tested the following...Ch. 9 - A production line operates with a mean filling...Ch. 9 - At Western University the historical mean of...Ch. 9 - Young children in the United States are exposed to...Ch. 9 - The Wall Street Journal reported that bachelors...Ch. 9 - Data from the Office for National Statistics show...Ch. 9 - A recent issue of the AARP Bulletin reported that...Ch. 9 - The chamber of commerce of a Florida Gulf coast...Ch. 9 - In Hamilton County, Ohio, the mean number of days...Ch. 9 - On December 25, 2009, an airline passenger was...Ch. 9 - An airline promotion to business travelers is...Ch. 9 - Members of the millennial generation are...Ch. 9 - The unemployment rate for 18- to 34-year-olds was...Ch. 9 - A radio station in Myrtle Beach announced that at...Ch. 9 - In recent years more people have been working past...Ch. 9 - Shorney Construction Company bids on projects...Ch. 9 - A federal funding program is available to...Ch. 9 - H0: = 120 and Ha: 120 are used to test whether...Ch. 9 - Quality Associates, Inc. Quality Associates, Inc.,...Ch. 9 - Ethical Behavior of Business Students at Bayview...

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