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) of thecontestants 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 nomally distributed. Complete parts (a) through (e) below.ContestantTime (beginning)Time (end)5 61 2127.8 139.2 116.5 108.4 107.5 142.5 106.9 123.7127.6 139.4 116.2 107.9 107.4 142.9 106.6 123,53 47O A. The contestants' times have not changed.O B. The contestants' times have decreased.O C. The contestants' times have increased.D. The contestants' times have changed.Let Ha be the hypothesized mean of the difference in the times (beginning - end). What are Ho and H, ?O A Ho: H zdO B. Ho: Hg s0H, Hg > 0OC. Ho Ha 20O D. Ho: Hg 0H =0VE. Ho: H0OF H Hsd(b) Find the critical value(s) and identify the rejection region(s).Select the correct choice below and fill in any answer boxes to complete your choice.(Round to three decimal places as needed.)OA. t>O B. t< or t>OC. t<

Given Hypothesis Ho: μd=0 vs H1: μd≠0 (two tailed) Level of significance =ɑ=0.01 ,n=8

Answered: Show, e e af weight in order to win a…

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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a population proportion of 0.61. Suppose a random sample of 662 items is sampled randomly from this population
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A scientist claims that pneumonia causes weight loss in mice. The table shows the weights (in grams) of six mice before infection and two days after infection. At a= 0.10, is there enough evidence to support the scientist's claim? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (e) below. 1 2 22.7 21.6 20.6 20.6 21.7 22.9 21.3 20.9 19.9 20.2 20.6 21.7 Mouse 3 4 56o Weight (before) Weight (after) (a) Identify the claim and state Ho and H, What is the claim? O A. Weight loss causes pneumonia in mice. O B. Pneumonia causes weight gain in mice. Yc. Pneumonia causes weight loss in mice. O D. Weight gain causes pneumonia in mice. Let Ha be the hypothesized mean of the difference in the weights (before - after). What are Ho and H,? O A. Ho: Hg s0 H H >0 OB. Ho: Ha sd OC. Ho: Ha0 OF. Ho: Hg zd OE. Ho: Ha =0 H Hg #0 OD. Ho: Ha0
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A scientist claims that pneumonia causes weight loss in mice. The table shows the weights (in grams) of six mice before infection and two days after infection. At a = 0.10, is there enough evidence to support the scientist's claim? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (e) below. 1 2 22.7 21.6 20.6 20.6 21.7 22.9 21.3 20.9 19.9 20.2 20.6 21.7 Mouse 3 4 56 e Weight (before) Weight (after) (a) Identify the claim and state Ho and H. What is the claim? O A. Weight loss causes pneumonia in mice. O B. Pneumonia causes weight gain in mice. O C. Pneumonia causes weight loss in mice. O D. Weight gain causes pneumonia in mice.
and if the scores A set of 10 scores has SS= 90. If the scores are a sample, the sample variance is are a population, the population variance is O 2 - 10: ? = 10

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