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Suppose we set αα to 0.05. If you conduct an appropriate tt-test to address the research question, which of the following is the upper critical tt-value that you can use in the test?  A. 1.7531 B. 2.1315 C. 2.9467 D. 1.9590

Suppose we set αα to 0.05. If you conduct an appropriate tt-test to address the research question, which of the following is the upper critical tt-value that you can use in the test?  A. 1.7531 B. 2.1315 C. 2.9467 D. 1.9590

MATLAB: An Introduction with Applications
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 clinical psychologist thinks that depression may affect sleep. She decides to test this idea. She monitored nine depressed clients and eight non-depressed clients for three successive nights. The average number of hours slept by each subject during the last two nights is recorded. The data for the two conditions are stored in the following vectors. 

 

depressedClients <- c(7.1, 6.8, 6.7, 7.3, 7.5, 6.2, 6.9, 6.5, 7.2)
normalClients <- c(8.2, 7.5, 7.7, 7.8, 8.0, 7.4, 7.3, 6.5)

 

Suppose we set αα to 0.05. If you conduct an appropriate tt-test to address the research question, which of the following is the upper critical tt-value that you can use in the test? 

A.

1.7531

B.

2.1315

C.

2.9467

D.

1.9590

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