From past experience a television manufacturer found that 10% or less of its sets needed any type

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From past experience a television manufacturer found that 10% or less of its sets needed any type of repair in the first two years of operation. In a sample of 50 sets manufactured two years ago, 9 needed repair. At the 0.05 significance level, has the percentage of sets needing repair increased? Determine the p-value.

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Basic Statistics For Business & Economics

ISBN: 9781259268939

6th Canadian Edition

Authors: Douglas A. Lind, William G Marchal, Samuel A. Wathen, Carol Ann Waite

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