please help with a-b and how you got it

nework X Save Submit Assignment for Grading ons Exercise 10.44 Algorithmic Question 5 of 10 Check My Work A large automobile insurance company selected samples of single and married male policyholders and recorded the O number who made an insurance claim over the preceding three year period. Single Policyholders Married Policyholders n1 = 344 n2 = 708 O Number making claims = 89 Number making claims = 128 O a. Use a = 0.05. Test to determine whether the claim rates differ between single and married male policyholders. C z-value (to 2 decimals) p-value (to 4 decimals) We - Select your answer - v that there is the difference between claim rates. 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. Check My Work O- Icon Key Exercise 10.44 Algorithmic Question 5 of 10 Save Submit Assignment for Grading