Question: Group of dieters started exercise program. Is there a difference in the weight loss without and with exercise at .05 level. Use paired sample sign test. State hypotheses and identify claim, find critical value(s), compute test value, make decision, summarize results.

Average weight loss per week

dieter no exercise with exercise

1 2 3

2 3 3.5

3 1 1.5

4 2.5 3

5 4 6

6 2 4

7 4 3

8 5 6.5

9 5 5

10 4 6.5