HW#8 Ch. 10 Hypothesis Testing Student Name: We have 2 independent random samples from 2 different populations with the following characteristics. Sample 1: Meanl = 20, standard deviation1=10, proportion1 = 0.6, sample size1=28. Sample 2: Mean2 = 10, standard deviation2 =5. proportion2 = 0.3, sample size2=22. Problem 1 a) Test the hypothesis that the difference between the two population means (mean 1 - mean 2) is statistically significant at Alpha=0.01. b) Test the hypothesis that the difference between the two population means is greater than & at Alpha=0.05.Problem 2 a) Test the hypothesis that the difference between the two population proportions (proportion 1 - proportion 2) is statistically significant at Alpha=0.1. b) Test the hypothesis that the difference between the two population proportions is less than 0.4 at Alpha=0.1