$3.$ For the problem below, use the solution 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.$$

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At Rachel$$s $11$th 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.

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Relaxed time $($seconds$)$

Jumping time $($seconds$)$

$26$

$21$

$47$

$40$

$30$

$28$

$22$

$21$

$23$

$25$

$45$

$43$

$37$

$35$

$29$

$32$