seconds) of theOn 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 timescontestants 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 populationis normally distributed. Complete parts (a) through (e) below.Contestant5 634Time (beginning) 127.8 139.2 116.5 108.4 107.5 142.5 106.9 123.712Time (end)127.6 139.4 116.2 107.9 107.4 142.9 106.6 123.5(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.O C. The contestants' times have increased.OD. The contestants' times have changed.

Null and alternative hypotheses: Null hypothesis: The null hypothesis is a statement that indicates…

Answered: On a television show, eight contestants…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Is the difference between the mean annual salaries of statisticians in Region 1 and Region 2 more than $4000? To decide, you select a random sample of statisticians from each region. The results of each survey are shown to the right. At a = 0.10, what should you conclude? Region 1 X1 = $67,700 01 = $8875 Region 2 X2 = $61,000 02 = $9250 n1 = 48 n2 = 44 Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. Choose the correct answer below. O A. Reject Ho. At the 10% significance level, there is sufficient evidence to support the claim that the difference between the mean annual salaries is more than $4000. O B. Fail to reject Ho. At the 10% significance level, there is sufficient evidence to support the claim that the difference between the mean annual salaries is more than $4000. OC. Reject Ho. At the 10% significance level, there is insufficient evidence to support the claim that the difference between…
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