Essentials of Statistics for Business and Economics (with XLSTAT Printed Access Card)
8th Edition
ISBN: 9781337114172
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
Publisher: Cengage Learning
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Chapter 1, Problem 8SE
The Tennessean, an online newspaper located in Nashville, Tennessee, conducts a daily poll to obtain reader opinions on a variety of current issues. In a recent poll, 762 readers responded to the following question: “If a constitutional amendment to ban a state income tax is placed on the ballot in Tennessee, would you want it to pass?” Possible responses were Yes, No, or Not Sure (The Tennessean website, February 15, 2013).
- a. What was the
sample size for this poll? - b. Are the data categorical or quantitative?
- c. Would it make more sense to use averages or percentages as a summary of the data for this question?
- d. Of the respondents, 67% said Yes, they would want it to pass. How many individuals provided this response?
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The Tennessean, an online newspaper located in Nashville, Tennessee, conducts a dailypoll to obtain reader opinions on a variety of current issues. In a recent poll, 762 readersresponded to the following question: “If a constitutional amendment to ban a state incometax is placed on the ballot in Tennessee, would you want it to pass?” Possible responseswere Yes, No, or Not Sure (The Tennessean website, February 15, 2013).a. What was the sample size for this poll?
Ballistic Fingerprinting. In an on-line press release, ABCNews.com reported that “. . . 73 percent of Americans. . . favor a law that would require every gun sold in the United States to be test-fired first, so law enforcement would have its fingerprint in case it were ever used in a crime.”
a. Do you think that the statement in the press release is inferential or descriptive? Can you be sure?
b. Actually, ABCNews.com conducted a telephone survey of a random national sample of 1032 adults and determined that 73% of them favored a law that would require every gun sold in the United States to be test-fired first, so law enforcement would have its fingerprint in case it were ever used in a crime. How would you rephrase the statement in the press release to make clear that it is a descriptive statement? an inferential statement?
A newspaper had the following headline. "People Against New Breed-Specific
Dog Ban" The reporter who wrote the story tells you he visited a leash free park
and talked to 100 dog owners.
His question:
A mew by-law bans owning a
Pit Bull, StafforAshire Terrier,
or Bull Terrier dog breed, or any
hybrid or similar cvessbreed.
Do you support the by-law?
a. Why are the survey results invalid?
b. What changes would you make to improve the survey?
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Chapter 1 Solutions
Essentials of Statistics for Business and Economics (with XLSTAT Printed Access Card)
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 - 5. Refer to the data set in Table 1.7.
What is the...Ch. 1 - J.D. Power and Associates surveys new automobile...Ch. 1 - The Kroger Company is one of the largest grocery...Ch. 1 - The Tennessean, an online newspaper located in...Ch. 1 - Prob. 9SECh. 1 - The Bureau of Transportation Statistics Omnibus...
Ch. 1 - Prob. 11SECh. 1 - The Hawaii Visitors Bureau collects data on...Ch. 1 - 13. Figure 1.7 provides a bar chart showing the...Ch. 1 - Rental Car Fleet Size. The following data show the...Ch. 1 - 15. Every year, the U.S. Coast Guard collects data...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 - 23. Pew Research Center is a nonpartisan polling...Ch. 1 - A sample of midterm grades for five students...Ch. 1 - 25. Table 1.8 shows a data set containing...
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