Tuesday
October 21, 2014

Homework Help: statistics

Posted by John Davis on Saturday, December 11, 2010 at 9:58pm.

Computer Services wants to estimate the mean number of hours college students use on campus computers each day. They want to be within .1 hour of the true value with 99% confidence. From a previous study, the standard deviation is assumed to be .6 hour. What size sample is needed? Show any work necessary to support your answer

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