Grant Thornton LLP is the U.S. member firm of Grant Thornton International, one of the six global accounting, Method 1 Method 2 Method 3 Doctorate 83 81 82 Master’s 77 75 79 Bachelor’s 74 73 75 High School 72 70 69

a. Indicate why blocking was employed in this design.

b. Determine if blocking was effective for this design by producing the relevant ANOVA.

c. Using a significance level of 0.05, determine if the average posttraining examination scores among the auditing methods are equal to each other.

d. If you discovered that there were differences among the average posttraining examination scores among the auditing methods, use the LSD approach to determine which populations have different means.