EBK STATISTICS FOR BUSINESS & ECONOMICS
12th Edition
ISBN: 8220100460463
Author: Anderson
Publisher: CENGAGE L
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Textbook Question
Chapter 10, Problem 44SE
A large automobile insurance company selected samples of single and married male policyholders and recorded the number who made an insurance claim over the preceding three-year period.
| Single Policyholders | Married Policyholders |
| n1 = 400 | n2 = 900 |
| Number making claims = 76 | Number making claims = 90 |
- a. Use α = .05. Test to determine whether the claim rates differ between single and married male policyholders.
- b. Provide a 95% confidence interval for the difference between the proportions for the two populations.
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Chapter 10 Solutions
EBK STATISTICS FOR BUSINESS & ECONOMICS
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