A sports researcher gave a standard written test of eating habits to 12 randomly selected professionals, four each from baseball, football, and basketball. The results were as follows:
Eating Habits Scores
Baseball Players Football Players Basketball Players
34 27 35
18 28 44
21 67 47
65 42 61
Is there a difference in eating habits among professionals in the three sports? (Use the .05 significance level.)
a. Use the five steps of hypothesis testing.
b. Sketch the distribution involved.
c. Determine effect size.