HW 10.3 Score: DIES ONE: answered . Question 3 v You are asked to test if two population proportions are different. The table above shows random sample results} where X gives the number of people who responded "yes" to a survey asking if they are "happy". Are the sample sizes large enough for the test results to be valid? ""3? No, because one or more of the samples has fewer than 5 successes or failures '5'} No, because both sample sizes are less than 30 '33:? Yes, because both sample sizes exceed 30 "'3' Yes, since both samples have at Least 5 successes and 5 failures 0 Question 4 v You are asked to test if two population proportions are different. The table above shows random sample results, where X gives the number of people who responded "yes" to a survey asking if they are "happy". Find each of the following. Round to three decimals. Remember that g3 and p' mean the same thing. 31.3)]: b.972: ope: . Question 5 v a. If you are testing a cLaim about equaLity between two population proportions, choose the correct formula for the Standardized Test Statistic (STS): P] _ P2 Z 2 PC ' qr: Pr. ' 9c T11 + 1'12 i1 5E2 T = s: 5; 111 + 1T2 5E1 E2 __.-' Z : 2 2 '31 0'2 _ .1. _