The first question is correct. Please answer the second question.

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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The first question is correct. Please answer the second question. 

A random sample of 36 college graduates revealed that they
worked an average of 7.25 years on the job before being
promoted. The sample standard deviation was 12 years. The
99% confidence interval is
[ 1.802, 12.698 ]
O [7.250, 19.250]
O [2.724, 9.974]
O [1.802, 7.250 ]
Transcribed Image Text:A random sample of 36 college graduates revealed that they worked an average of 7.25 years on the job before being promoted. The sample standard deviation was 12 years. The 99% confidence interval is [ 1.802, 12.698 ] O [7.250, 19.250] O [2.724, 9.974] O [1.802, 7.250 ]
Using the same information in the previous question (Q13)
and using a = 0.01, how would you treat the competing
hypotheses?
Họ: u = 7 years
Hại H * 7 years
O Fail to reject the null
O Reject the null
O Accept the null
O Not enough information
Transcribed Image Text:Using the same information in the previous question (Q13) and using a = 0.01, how would you treat the competing hypotheses? Họ: u = 7 years Hại H * 7 years O Fail to reject the null O Reject the null O Accept the null O Not enough information
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