For Exercises 27–32, assume that the populations are normally distributed. Perform the indicated hypothesis tests using the -value method. For each exercise,
27.
10.4.27
(a) . Reject if the .
(b) (c) . (d) Since the is not , we do not reject . There is insufficient evidence at the level of significance that the population standard deviation of Population 1 is greater than the population standard deviation of Population 2.