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 PolicyholdersMarried Policyholders 350 1,000Number making claims = 70Number making claims = 150 a. Use l= 0.05 Test to determine whether the claim rates differ between single and married male policyholders.z-value (to 2 decimals)p-value (to 4 decimals) b. Provide a 95% confidence interval (to 4 decimals) for the difference between the proportions for the two populations. Enter negative answer as negative number.

Answered: A large automobile insurance company…

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter7: Applying Fractions

Section7.1: Ratios

Problem 21WE

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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
350	1,000
Number making claims = 70	Number making claims = 150

a. Use l= 0.05 Test to determine whether the claim rates differ between single and married male policyholders.

z-value	(to 2 decimals)
p-value	(to 4 decimals)

b. Provide a 95% confidence interval (to 4 decimals) for the difference between the proportions for the two populations. Enter negative answer as negative number.

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