The table below shows a sample of waiting times (in days) for a heart transplant for two age groups. At α=0.05, can you conclude that the variances of the waiting times differ between the two age groups? The table below shows a sample of waiting times (in days) for a heart transplant for two age groups. At a = 0.05, can you conclude that the variances of the waiting times differ between the two age groups?18-3435-49155 173167171160211193 212210199 211198(a) Determine the hypotheses. Let o? be the variance for the 18-34 group and let o? be the variance for the 35-49 group. Choose the correct answer below.O A. Ho: of #o3Hai of =o3OC. Ho: o =02B. Ho: of z03Hại of o?(b) Determine the critical value.Fo =O(Round to two decimal places as needed.)%3DWhat is the rejection region for this F-test?O A. F< -Fo or F >FoО В. - FoFoO D. F

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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The table below shows a sample of waiting times (in days) for a heart transplant for two age groups. At α=0.05, can you conclude that the variances of the waiting times differ between the two age groups?

The table below shows a sample of waiting times (in days) for a heart transplant for two age groups. At a = 0.05, can you conclude that the variances of the waiting times differ between the two age groups?
18-34
35-49
155 173
167
171
160
211
193 212
210
199 211
198
(a) Determine the hypotheses. Let o? be the variance for the 18-34 group and let o? be the variance for the 35-49 group. Choose the correct answer below.
O A. Ho: of #o3
Hai of =o3
OC. Ho: o =02
B. Ho: of z03
Hại of <o}
O D. Ho: of so3
Hại of >o?
(b) Determine the critical value.
Fo =O
(Round to two decimal places as needed.)
%3D
What is the rejection region for this F-test?
O A. F< -Fo or F >Fo
О В. - Fo<F<Fo
OC. F>Fo
O D. F<Fo
(c) Compute the F test statistic.
F =
(Round to two decimal places as needed.)
(d) Reach a decision.
Ho. There is
evidence to conclude that the variances of the waiting times differ between the two age groups.

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