Are couples that live together before they get married more likely to end up divorced within five years of marriage compared to couples that live apart before they get married? 195 of the 647 couples from the study who lived together before they got married were divorced within five years of marriage. 122 of the 453 couples from the study who lived apart before they got married were divorced within five years of marriage. What can be concluded at the a = 0.05 level of significance? For this study, we should use z-test for the difference between two population proportions a. The null and alternative hypotheses would be: Ho: p1 p2 H1: p1 p2 b. The test statistic zv =| 1.157 X (please show your answer to 3 decimal places.)