Two Toy Companies Are Being Compared with Respect to the Time

Multiple Choice

Two toy companies are being compared with respect to the time it takes them to build a popular wooden train set. The study is interested in determining whether there is a difference in the variability between the two toy companies production times. They wish to conduct the hypothesis test using an alpha = 0.05. If random samples of 20 train sets are selected from each toy company, what is the appropriate F critical value?

A) 2.526
B) 2.938
C) 2.168
D) 2.124