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Levels Tought:
University
| Teaching Since: | Apr 2017 |
| Last Sign in: | 438 Weeks Ago, 1 Day Ago |
| Questions Answered: | 9562 |
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bachelor in business administration
Polytechnic State University Sanluis
Jan-2006 - Nov-2010
CPA
Polytechnic State University
Jan-2012 - Nov-2016
Professor
Harvard Square Academy (HS2)
Mar-2012 - Present
The administration of a large university wants to take a random sample to measure student opinion of a new food service on campus. It plans to use a continuous scale from 1 to 100, on which 1 is complete dissatisfaction and 100 is complete satisfaction. The administration knows from past experience with such questions that the standard deviation for the responses is going to be about 5, but it does not know what to expect for the mean. It wants to be almost sure that the sample mean is within plus or minus 1 point of the true population mean value. How large will the random sample have to be?
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