Modern Business Statistics with Microsoft Office Excel (with XLSTAT Education Edition Printed Access Card) (MindTap Course List)
6th Edition
ISBN: 9781337115186
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 21SE
A seven-year medical research study reported that women whose mothers took the drug DES during pregnancy were twice as likely to develop tissue abnormalities that might lead to cancer as were women whose mothers did not take the drug.
- a. This study compared two populations. What were the populations?
- b. Do you suppose the data were obtained in a survey or an experiment?
- c. For the population of women whose mothers took the drug DES during pregnancy, a sample of 3980 women showed that 63 developed tissue abnormalities that might lead to cancer. Provide a
descriptive statistic that could be used to estimate the number of women out of 1000 in this population who have tissue abnormalities. - d. For the population of women whose mothers did not take the drug DES during pregnancy, what is the estimate of the number of women out of 1000 who would be expected to have tissue abnormalities?
- e. Medical studies often use a relatively large sample (in this case. 3980). Why ?
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9.2 Testing the Mean mu:
Problem 3
(1 point)
Test the claim that the population of sophomore college
students has a mean grade point average greater than 2.2.
Sample statistics include n = 71, x = 2.44, and s = 0.9.
Use a significance level of a = 0.01.
The test statistic is
The P-Value is between :
The final conclusion is
< P-value <
A. There is sufficient evidence to support the claim that
the mean grade point average is greater than 2.2.
○ B. There is not sufficient evidence to support the claim
that the mean grade point average is greater than 2.2.
Note: You can earn partial credit on this problem.
Note: You are in the Reduced Scoring Period. All work counts for
50% of the original.
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Chapter 1 Solutions
Modern Business Statistics with Microsoft Office Excel (with XLSTAT Education Edition Printed Access Card) (MindTap Course List)
Ch. 1 - 1. Discuss the differences between statistics as...Ch. 1 - 2. Tablet PC Comparison provides a wide variety of...Ch. 1 - 3. Refer to Table 1.6.
What is the average cost...Ch. 1 - 4. Table 1.7 shows data for eight cordless...Ch. 1 - 5. Refer to the data set in Table 1.7.
What is the...Ch. 1 - 6. J.D. Power and Associates surveys new...Ch. 1 - 7. The Kroger Company is one of the largest...Ch. 1 - 8. The Tennessean, an online newspaper located in...Ch. 1 - 9. The Commerce Department reported receiving the...Ch. 1 - 10. The Bureau of Transportation Statistics...
Ch. 1 - 11. In a Gallup telephone survey conducted on...Ch. 1 - 12. The Hawaii Visitors Bureau collects data on...Ch. 1 - Figure 1.10 provides a bar chart showing the...Ch. 1 - The following data show the number of rental cars...Ch. 1 - The U.S. Census Bureau tracks sales per month for...Ch. 1 - 17. A manager of a large corporation recommends a...Ch. 1 - 18. A random telephone survey of 1021 adults (aged...Ch. 1 - 19. A Bloomberg Businessweek North American...Ch. 1 - 20. A survey of 131 investment managers in...Ch. 1 - 21. A seven-year medical research study reported...Ch. 1 - Prob. 22SECh. 1 - Pew Research Center is a nonpartisan polling...Ch. 1 - 24. A sample of midterm grades for five students...Ch. 1 -
Table 1.8 shows a data set containing information...
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