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December 6, 2016

Homework Help: Statistics

Posted by George on Wednesday, May 5, 2010 at 6:55pm.

A maker of microwave ovens advertises that no more than 10% of its microwaves need repair during the first 5 years of use. In a random sample of 57 microwaves that are 5 years old, 13% needed repairs. At á=0.01, can you reject the maker’s claim that no more than 10% of its microwaves need repair during the first five years of use?

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