A manufacturing process produces lightbulbs with life expectancies that are normally distributed with a mean of 500
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A manufacturing process produces lightbulbs with life expectancies that are normally distributed with a mean of 500 hours and a standard deviation of 100 hours. What percentage of the lightbulbs can be expected to last between 500 and 670 hours?
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To answer this question we determine how many standard deviations 670 is from 500 the mean ...View the full answer
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Related Book For
Finite Mathematics For Business Economics Life Sciences And Social Sciences
ISBN: 9780134862620
14th Edition
Authors: Raymond Barnett, Michael Ziegler, Karl Byleen, Christopher Stocker
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