An accounting professor wants to know if students perform th

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 = 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.

Find the missing values in the ANOVA table . (Round intermediate values to 4 decimal places and final answers to 2 decimal places.)

Solution

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 = 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.

a.

Find the missing values in the ANOVA table . (Round intermediate values to 4 decimal places and final answers to 2 decimal places.)

  ANOVA

Source of Variation

    SS

df

     MS

      F

p-value

F crit

  Between Groups

57.54

2

MSTR =  28.77

F_2,57 =  1.07

0.3498

3.159

  Within Groups

SSE =  1537.64

57

MSE =   26.9761

  Total

1,595.18

59

b.

SSE=1595.18 - 57.54=1537.64

MSTR=57.54/2=28.77

MSE=1537.64/57=26.9761

F=28.77/ 26.9761 = 1.07

At the 5% significance level, can you conclude that average grades differ in the accounting sections?

Average grades differ

Average grades don\'t differ

( calculated P=0.3498 > 0.05 level)