Assume that both populations are normally distributed. Sample 1 Sample 2 a) Test whether H, > H2 at the a = 0.01 level of significance for the given sample data. n 20 15 b) Construct a 99% confidence interval about 1 - H2. X 50.4 43.2 S 9.5 12.4 Click the icon to view the Student t-distribution table. a) Perform a hypothesis test. Determine the null and alternative hypotheses. @A. HO: H1 = H2, H1: 141 > H2 OB. Ho: H1 = H2, H1: H1

H2 OD. HO: Hy > H2, H1: Hy