3. We study the influence of practice on performing a task requiring eye-hand coor¬ dination. We test people with no practice, after 1 hour of practice, and after 2 hours of practice. In the following data, higher scores indicate better performance,

(a) What are Hq and

(b) Complete the ANOVA summary table,

(c) With a = .05, what do you conclude about ^obt?

(d) Perform the appropriate post hoc com¬ parisons.

(e) What is the effect size in this study?

(f) What should you conclude about this relationship?

Amount of Practice Subjects None 1 Hour 2 Hours 1

4 3

6 2

3 5

5 3

1 4

3 4

3 4

6 5

1 5

6 6

2 6

7 7

2 4

5 8

1 3

8