We employ one-way ANOVA to compare the performance scores from five groups of nine cases each and obtain a significant F. (a) What is the only interpretation that we can make with a significant F? (b) What must we do at this point to justify a more specific conclusion? For this analysis, and the treatment means are as follows: ? and ? (c) Display the difference between the means for all possible pairs of samples as shown in Section 18.14. (d) Apply Tukey?? HSD test with .05. What do you conclude? (e) Apply Tukey?? HSD test, but use a = .01.