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What is the alternative hypothesis? Op > 0.91 Op≥ 0.78 Op≥ 0.91 Op > 0.91 Op≥ 0.78 Op > 0.78 Op> 0.78 Op ≥ 0.91 What is the appropriate critical value?

What is the alternative hypothesis? Op > 0.91 Op≥ 0.78 Op≥ 0.91 Op > 0.91 Op≥ 0.78 Op > 0.78 Op> 0.78 Op ≥ 0.91 What is the appropriate critical value?

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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In a simple random sample of 22 small business owners, 20 said that hiring college graduates makes their workplace better. Test the hypothesis that more than 78% of small business owners believe that hiring college graduates makes their workplace better at the 0.01 level. What is the alternative hypothesis? Op > 0.91 Op≥ 0.78 Op≥ 0.91 Op > 0.91 Op≥ 0.78 Op > 0.78 Op > 0.78 Op ≥ 0.91 What is the appropriate critical value? 2.518 2.576 2.326 2.831 State your decision given a test statistic of 2.01. Reject Ho Fail to reject Ho Accept Ho The correct conclusion is that we Select an answer conclude that Select an answer 78% of Select an answer ◆ small business owners believe that hiring college graduates makes their workplace better. What level of concern do you have for the validity of your results? Low - the only assumption violated (ngo = 4.84) misses by a very small margin, so there is minor concern None - all assumptions are met so there appears to be no problem with the conclusion Extreme - we should not use any part of what we've done to make a conclusion Moderate - the sample size is only 22, but that's likely close enough to 30 for our results to not be completely dismissed Either the low or moderate response is acceptable
Transcribed Image Text:In a simple random sample of 22 small business owners, 20 said that hiring college graduates makes their workplace better. Test the hypothesis that more than 78% of small business owners believe that hiring college graduates makes their workplace better at the 0.01 level. What is the alternative hypothesis? Op > 0.91 Op≥ 0.78 Op≥ 0.91 Op > 0.91 Op≥ 0.78 Op > 0.78 Op > 0.78 Op ≥ 0.91 What is the appropriate critical value? 2.518 2.576 2.326 2.831 State your decision given a test statistic of 2.01. Reject Ho Fail to reject Ho Accept Ho The correct conclusion is that we Select an answer conclude that Select an answer 78% of Select an answer ◆ small business owners believe that hiring college graduates makes their workplace better. What level of concern do you have for the validity of your results? Low - the only assumption violated (ngo = 4.84) misses by a very small margin, so there is minor concern None - all assumptions are met so there appears to be no problem with the conclusion Extreme - we should not use any part of what we've done to make a conclusion Moderate - the sample size is only 22, but that's likely close enough to 30 for our results to not be completely dismissed Either the low or moderate response is acceptable
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