On a television show, eight contestants try to lose the highest percentage of weight in order to win a cash prize. As part of the show, the contestants are timed as they run an obstacle course. The table shows the times (in seconds) af the contestants at the beginning of the season and at the end of the season. At a=0.01, is there enough evidence to support the claim that the contestants' times have changed? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (e) below. 1 2 3 4 5 6 7 80 Time (beginning) 127.8 139.2 116.5 108.4 107.5 142.5 106.9 123.7 127.6 139.4 116.2 107.9 107.4 142.9 106.6 123.5 Contestant Time (end) (a) Identify the claim and state Ho and H What is the claim? O A. The contestants' times have not changed. O B. The contestants' times have decreased. OC. The contestants' times have increased. O D. The contestants' times have changed.

On a television show, eight contestants try to lose the highest percentage of weight in order to win a cash prize. As part of the show, the contestants are timed as they run an obstacle course. The table shows the times (in seconds) af the contestants at the beginning of the season and at the end of the season. At a=0.01, is there enough evidence to support the claim that the contestants' times have changed? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (e) below. 1 2 3 4 5 6 7 80 Time (beginning) 127.8 139.2 116.5 108.4 107.5 142.5 106.9 123.7 127.6 139.4 116.2 107.9 107.4 142.9 106.6 123.5 Contestant Time (end) (a) Identify the claim and state Ho and H What is the claim? O A. The contestants' times have not changed. O B. The contestants' times have decreased. OC. The contestants' times have increased. O D. The contestants' times have changed.

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section10.8: Probability

Problem 38E

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