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July 24, 2014

Homework Help: Statistics

Posted by Janice on Wednesday, February 10, 2010 at 5:54pm.

A recent article in a computer magazine suggested that the mean time to fully learn a new software program is 40 hours. A sample of 100 first-time users of a new statistics program revealed the mean time to learn it was 39 hours with the standard deviation of 8 hours. At the 0.05 significance level, can we conclude that users learn the package in less than a mean of 40 hours?

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