Essentials Of Statistics For Business & Economics
9th Edition
ISBN: 9780357045435
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
Publisher: South-Western College Pub
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Textbook Question
Chapter 1, Problem 23SE
Teenage Cell Phone Use. Pew Research Center is a nonpartisan polling organization that provides information about issues, attitudes, and trends shaping America. In a poll, Pew researchers found that 73% of teens aged 13–17 have a smartphone, 15% have a basic phone and 12% have no phone. The study also asked the respondents how they communicated with their closest friend. Of those with a smartphone, 58% responded texting, 17% social media and 10% phone calls. Of those with no smartphone, 25% responded texting, 29% social media and 21% phone calls (Pew Research Center website, October 2015).
- a. One statistic (58%) concerned the use of texting to contact his/her closest friend, if the teen owns a smartphone. To what population is that applicable?
- b. Another statistic (25%) concerned the use of texting by those who do not own a smartphone. To what population is that applicable?
- c. Do you think the Pew researchers conducted a census or a sample survey to obtain their results? Why?
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Chapter 1 Solutions
Essentials Of Statistics For Business & Economics
Ch. 1 - Discuss the differences between statistics as...Ch. 1 - Tablet PC Comparison provides a wide variety of...Ch. 1 - Refer to Table 1.6.
What is the average cost for...Ch. 1 - Table 1.7 shows data for eight cordless telephones...Ch. 1 - Summarizing Phone Data. Refer to the data set in...Ch. 1 - J.D. Power and Associates surveys new automobile...Ch. 1 - Airline Customer Satisfaction. Many service...Ch. 1 - The Tennessean, an online newspaper located in...Ch. 1 - College-Educated Workers. Based on data from the...Ch. 1 - The Bureau of Transportation Statistics Omnibus...
Ch. 1 - Driverless Cars Expected Soon. A Gallup Poll...Ch. 1 - The Hawaii Visitors Bureau collects data on...Ch. 1 - Facebook Advertising Revenue. Figure 1.8 provides...Ch. 1 - Rental Car Fleet Size. The following data show the...Ch. 1 - Jewelry Sales. The U.S. Census Bureau tracks sales...Ch. 1 - Athletic Shoe Sales. Skechers U.S.A., Inc., is a...Ch. 1 - A manager of a large corporation recommends a...Ch. 1 - A random telephone survey of 1021 adults (aged 18...Ch. 1 - A Bloomberg Businessweek North American subscriber...Ch. 1 - A survey of 131 investment managers in Barron’s...Ch. 1 - A seven-year medical research study reported that...Ch. 1 - A survey conducted by Better Homes and Gardens...Ch. 1 - Teenage Cell Phone Use. Pew Research Center is a...Ch. 1 - A sample of midterm grades for five students...Ch. 1 - Comparing Compact SUVs. Consumer Reports evaluates...
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