Use the given statistics to complete parts (a) and (bi. Assume that the populations Population 1 Population 2 S are normally distributed. n 20 15 (a) Test whether , > u, at the a = 0.05 level of significance for the given sample X 45.9 40.8 data. (b) Construct a 99% confidence interval about 1 - H2. S 4.5 13.2 Name (a) Identify the null and alternative hypotheses for this test. Due: Last V OA. HO: Hy

H2 Hy: H1 = H2 Hy: H1 > H 2 Hy : H1 = H2 Curre OD. Ho: Hy F H2 OE. HO: H1 = H2 OF. HO: H1 = H2 Atten Hy : H1 = H 2 Hy: My