300 prisoners have enrolled in a 6 month class for anger. random 10 prisoners are asked to complete a survey on 2 separate occasions, during the first session, then again during the last. results are converted into an index from 0-10, with higher scores indicating a higher tendency to seek non-violent solutions to problems.

participant first session last session

1 1 2

2 2 4

3 1 6

4 3 2

5 4 5

6 7 9

7 6 6

8 4 3

9 4 7

10 1 1

a. what type of stat test would you use

b. what is null hypothesis?

c. calculate test statistic, show steps

d. what are degrees of freedom?

e. what is critical value at the .05 level of significance?

f. fail or reject null hypothesis?