EBK STATISTICS FOR BUSINESS & ECONOMICS
12th Edition
ISBN: 9780100460461
Author: Anderson
Publisher: YUZU
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Chapter 12, Problem 29SE
Samples taken in three cities, Anchorage, Atlanta, and Minneapolis, were used to learn about the proportion of married couples where both husband and wife are in the workforce (USA Today, January 15, 2006).
| City | |||
| In Workforce | Anchorage | Atlanta | Minneapolis |
| Both Work | 57 | 70 | 63 |
| Only One | 33 | 50 | 27 |
- a. Conduct a hypothesis test to determine if the population proportion of married couples with both husband and wife in the workforce is the same for the three cities. Using a .05 level of significance, what is the p-value and what is your conclusion?
- b. Using these three samples, what is an estimate of the proportion of married couples with both husband and wife in the workforce?
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Chapter 12 Solutions
EBK STATISTICS FOR BUSINESS & ECONOMICS
Ch. 12.1 - use the sample data below to test the hypotheses...Ch. 12.1 - reconsider the observed frequencies in exercise 1...Ch. 12.1 - The sample data below represent the number of late...Ch. 12.1 - Benson Manufacturing is considering ordering...Ch. 12.1 - Kate Sanders, a researcher in the department of...Ch. 12.1 - A tax preparation firm is interested in comparing...Ch. 12.1 - Social networking is becoming more and more...Ch. 12.1 - A manufacturer is considering purchasing parts...Ch. 12.2 - The following table contains observed frequencies...Ch. 12.2 - The following table contains observed frequencies...
Ch. 12.2 - A Bloomberg Businessweek subscriber study asked,...Ch. 12.2 - A Deloitte employment survey asked a sample of...Ch. 12.2 - health insurance benefits vary by the size of the...Ch. 12.2 - A vehicle quality survey asked new owners a...Ch. 12.2 - The Wall Street Journal Corporate Perceptions...Ch. 12.2 - As the price of oil rises, there is increased...Ch. 12.2 - The national Sleep Foundation used a survey to...Ch. 12.2 - Prob. 18ECh. 12.3 - Test the following hypotheses by using the 2...Ch. 12.3 - The following data are believed to have come from...Ch. 12.3 - During the first 13 weeks of the television...Ch. 12.3 - Mars, Inc. manufactures MMs, one of the most...Ch. 12.3 - The wall street Journals Shareholder Scoreboard...Ch. 12.3 - The national highway Traffic Safety administration...Ch. 12.3 - use = .01 and conduct a goodness of fit test to...Ch. 12.3 - The weekly demand for a product is believed to be...Ch. 12 - In a quality control test of parts manufactured at...Ch. 12 - Phoenix Marketing international identified...Ch. 12 - Samples taken in three cities, Anchorage, Atlanta,...Ch. 12 - A Pew Research Center survey asked respondents if...Ch. 12 - Bara Research Group conducted a survey about...Ch. 12 - An ambulance service responds to emergency calls...Ch. 12 - Based on sales over a six-month period, the five...Ch. 12 - A random sample of final examination grades for a...Ch. 12 - A salesperson makes four calls per day. A sample...Ch. 12 - In a study conducted by Zogby International for...
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