The average life of a battery is advertised at 80 hours. A quality control check found that
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The average life of a battery is advertised at 80 hours. A quality control check found that the mean life was normally distributed at 80 hours, with a standard deviation of 14 hours. Determine the value above which 80% of the values will occur.
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Related Book For
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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