A senior analyst working for a stock brokerage firm has reviewed purchases his customers have made over the last six months. He has categorized the mutual funds purchased into eight categories: (1) Aggressive Growth (AG), (2) Growth (G), (3) Growth-Income (G-I),

(4) Income Funds (IF), (5) International (I), (6) Asset Allocation (AA), (7) Precious Metal (PM), and (8) Bond

(B). The percentage gains accrued by three randomly selected customers in each group are as follows:

Mutual Fund AG G G-I IF I AA PM B 6 7 5 1 14 -3 5 -1 7 -2 6 0 13 7 7 3 12 0 2 6 10 7 5 2

a. Develop the appropriate ANOVA table to determine if there is a difference in the average percentage gains accrued by his customers among the mutual fund types. Use a significance level of 0.05.

b. Use the Tukey-Kramer procedure to determine which mutual fund type has the highest average percentage gain. Use an experiment-wide error rate of 0.05.