Show transcribed image text 3:50 PM webwork.gonzaga.edu AT&T (1 pt) Two independent samples have been selected, 77 observations from population1 and 62 observations from population 2. The sample means have been calculated to be 2-1 = 14.4 and X2 = 9.9 From previous experience with these populations, it is known that the variances are Ïƒ-36 and Ïƒ 33 (a) Find Ïƒ(Z1-72) answer. (b) Determine the rejection region for the test of Ho : (Î¼1-42-249 and 42) > 2.49 Use a = 0.03- (c) Compute the test statistic. The final conclustion is A. We can reject the null hypothesis that (z11-/42) 2.49 and accept that ( -/42) > 2.49 B. There is not sufficient evidence to reject the null hypothesis that (Î¼ 1-12-249 (d) Construct a 97 % confidence interval for Note: You can earn partial credit on this problem.

3:50 PM webwork.gonzaga.edu AT&T (1 pt) Two independent samples have been selected, 77 observations from population1 and 62 observations from population 2. The sample means have been calculated to be 2-1 = 14.4 and X2 = 9.9 From previous experience with these populations, it is known that the variances are Ïƒ-36 and Ïƒ 33 (a) Find Ïƒ(Z1-72) answer. (b) Determine the rejection region for the test of Ho : (Î¼1-42-249 and 42) > 2.49 Use a = 0.03- (c) Compute the test statistic. The final conclustion is A. We can reject the null hypothesis that (z11-/42) 2.49 and accept that ( -/42) > 2.49 B. There is not sufficient evidence to reject the null hypothesis that (Î¼ 1-12-249 (d) Construct a 97 % confidence interval for Note: You can earn partial credit on this problem.