8. [-/8 Points] DETAILS MENDSTATC4 10.E.027. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Independent random samples of nj = 19 and n2 = 12 observations were selected from two normal populations with equal variances. Population 2 Sample Size 19 12 Sample Mean 34.6 32.3 Sample Variance 4.6 5.7 (a) Suppose you wish to detect a difference between the population means. State the null and alternative hypotheses for the test. O Ho: (H1 - M2) = 0 versus Ha: (H1 - 12) > 0 O Ho: (M1 - 12) 0 O Ho: (H1 - M2) = 0 versus Ha: (M1 - 12) t