In each of Exercises, we have provided the sample standard deviations and sample sizes for independent simple random samples from two populations. In each case, use the two-standarddeviations F-test...

In each of Exercises, we have provided the sample standard deviations and sample sizes for independent simple random samples from two populations. In each case, use the two-standarddeviations F-test and the two-standard-deviations  F-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval.

s1 = 14.5, n1 = 11, s2 = 30.4, n2 = 9

a. two-tailed test, a = 0.05
b. 95% confidence interval