13) The following table shows the mileage for four different cars and three different brands of gas. Using the Friedman Fr-test to test the claim that the three brands of gas come from distributions that are identical (i.e. - have the same median gas mileage). Use a 0.05 significance level. Find the test stat and the critical value:
         Brand 1    Brand 2    Brand 3
Car 1   22.4         25.2          24.3
Car 2   19            18.6         19.8
Car 3   24.6         25             25.4
Car 4   23.5         23.6          24.1

A) Test Stat: 109.5 Critical Value: 5.991
B) Test Stat: 4.5 Critical Value: 7.815
C) Test Stat: 4.5 Critical Value: 5.991
D) Test Stat: 4.5 Critical Value: 4.605
E) Test Stat: 14.5 Critical Value: 5.991