Answered: In a simple random sample of 26 small…

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 26 small business owners, 25 said that hiring college graduates makes their workplace better. Test the hypothesis that more than 81% of small business owners believe that hiring college graduates makes their workplace better at the 0.05 level.

The correct conclusion is that we Select an answer: can, cannot, can maybe... conclude that Select an answer: less than, exactly more than, a percentage different from... 81% of Select an answer: randomly selected, all sampled ...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?

Extreme −- we should not use any part of what we've done to make a conclusion
Moderate −- the sample size is only 26, but that's likely close enough to 30 for our results to not be completely dismissed
None −- all assumptions are met so there appears to be no problem with the conclusion
Low −- the only assumption violated (nq0=4.94) misses by a very small margin, so there is minor concern
Either the low or moderate response is acceptable

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