Two Airlines Are Being Compared with Respect to the Time

Multiple Choice

Two airlines are being compared with respect to the time it takes them to turn a plane around from the time it lands until it takes off again.The study is interested in determining whether there is a difference in the variability between the two airlines.They wish to conduct the hypothesis test using an alpha = 0.02.If random samples of 20 flights are selected from each airline,what is the appropriate F critical value?

A) 3.027
B) 2.938
C) 2.168
D) 2.124