1. For the problem below, use thesolution sheet from Appendix E. You will need to complete steps a. through h. Submit the solution sheet to your mentor along with the Practice Exercises 4 worksheet.

At Rachel's 11th birthday party, 8 girls were timed to see how long (in seconds) they could hold their breath in a relaxed position. After a 2-minute rest, they timed themselves while jumping. The girls thought that the mean difference between their jumping and relaxed times would be zero. Test their hypothesis.

Relaxed time (seconds)	Jumping time (seconds)
26	21
47	40
30	28
22	21
23	25
45	43
37	35
29	32

The Chi-Square Distribution

1. H₀: _______
2. H_a: _______
3. What are the degrees of freedom?
4. State the distribution to use for the test.
5. What is the test statistic?
6. What is thep-value? In one to two complete sentences, explain what thep-value means for this problem.
7. Use the previous information to sketch a picture of this situation.Clearlylabel and scale the horizontal axis and shade the region(s) corresponding to thep-value.