State the distribution to use for the test. (Enter your answer in the form zor tawhere df is the degrees of freedom.) O Part (e) What is the test statistic? (If uning the z distribution round your...

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 two-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 at the 5% level.

Extracted text: State the distribution to use for the test. (Enter your answer in the form zor tawhere df is the degrees of freedom.) O Part (e) What is the test statistic? (If uning the z distribution round your answer to two decimal places, and using the t distribution round your anwerto ee decimal places O Part (n O Part (g) O Part (h) Indicate the corect decision ("reject or "do not rejecr" the nul hypothesis), the reason for i, and write an appropriate concusion (1) Alpha (Enter an exact number as an integer, fraction, or decimal.)


Extracted text: Relaxed time (seconds) Jumping time (seconds) 25 21 45 40 29 29 22 21 23 25 45 43 37 35 29 32 If vou are using a Student's t-distribution for the problem, including for