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July 1, 2015

Homework Help: Probability and Statistics 2

Posted by Kim on Sunday, April 29, 2012 at 10:58pm.

The University of Southern Mississippi currently uses GE brad fluorescent light bulbs that have a mean life of 900 hours. Sylvania clams that its new fluorescent bulbs, that cost the same as the GE bulbs, last longer than the GE brand. A sample of 50 Sylvania bulbs produces a sample mean of 940 significance level to support Sylvania's claim?

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