Test Hypotheses Regarding Two Population Standard Deviations
-The Time Spent $\alpha = 0.05$

Test Hypotheses Regarding Two Population Standard Deviations
-The time spent watching television (per day) of 121 women between the ages of 55 and 64 had a standard deviation of 63 minutes. The time spent watching television (per day) of a random sample of 121 women between the ages of 25 and 34 had a standard deviation of 84 minutes. Test the hypothesis that the older women are from a population with a variance less than that for women in the 25 to 34 age group. Use $\alpha = 0.05$ . Assume the samples were randomly selected from normal populations.