A researcher hypothesized that variation in the car rental rates (in US$/day) at a major city airport is less than in the car rental rates down town.
A survey found that the variance of the rental rates on 8 cars at the airport was 35.7 while the variance of the rental rates on 5 cars down town was 50.4. What test value should be used in a F test?
a. 2.26
b. 1.19
c. 1.41
d. 1.99