Mathematics, 03.03.2021 05:10 aliyahlknox881
4.
The mean life of a battery is 50 hours with a standard deviation of 6 hours with an approximately normal shape. The
manufacturer advertises that they will replace all batteries that last less than 40 hours. If 50,000 batteries were
produced, how many should they expect to replace? Use the population standard deviation.
Answers: 2
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The mean life of a battery is 50 hours with a standard deviation of 6 hours with an approximatel...
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