Two accounting professors decided to test if the variance of their grades is different or no. To accomplish this, they each graded the same 10 exams with the following results: Mean Grade Standard Deviation Professor 1 Professor 2 The calculated F-statistic is 79.3 22.4 82.1 12 Select one: O a. 5.35 Ob. 1.867 c. 3.484 O d. 3.18

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A: Given: The provided data is:   Mean Variance Professor 1 79.3 22.4 Professor 2 82.1 12.0

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A: Given Sample Data M1 = 15                        M2 = 25 SS1 = 90                       SS2 = 70

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