Let n, = 80, X, = 30, n2 =80, and X2 = 40. Complete parts (a) and (b) below. a. At the 0.01 level of significance, is there evidence of a significant difference between the two population proportions? Determine the null and alternative hypotheses. Choose the correct answer below. O A. Ho: Ty S#2 O B. Ho: Ty = 12 O C. HO: Ty # #2 OD. HO: 1 2 12 Calculate the test statistic, ZSTAT, based on the difference P1 - P2. The test statistic, ZSTAT, is] (Type an integer or a decimal. Round to two decimal places as needed.) Calculate the p-value. The p-value is. (Type an integer or a decimal. Round to three decimal places as needed.) Determine a conclusion. Choose the correct answer below. the null hypothesis. There is evidence to support the claim that there is a significant difference between the two population proportions. b. Construct a 99% confidence interval estimate of the difference between the two population proportions. (Type integers or decimals. Round to four decimal places as needed.)