An accounting professor wants to know if students perform the same on the departmental final exam irrespective of the accounting section they attend. The following Excel output for a = 0.05 summarizes a portion of the results for a completely randomized design in which the treatments were three different sections of an accounting course and the variable measured was the grade on the final exam.
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a. Find the missing values in the ANOVA table.
b. At the Sob significance level, can you conclude that average grades differ in the accounting sections?