Grant Thornton LLP is a global accounting, tax and business
advisory organization. Auditors were grouped into four blocks
according to the education they had received: (1) high school, (2)
bachelor’s, (3) master’s, and (4) doctorate. Three auditors at each
education level were used–one assigned to each method. They were
given a post training examination consisting of complicated
auditing scenarios. The scores for the 12 auditors are as
follows:

a. Indicate why blocking was employed in this design.

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

c. Using a significance level of .05, determine if the average
post training examination scores among the auditing methods are
equal to each other.

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