The batteries from a certain manufacturer have a mean lifetime of 870 hours, with a standard deviation of 70 hours. Assu

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The batteries from a certain manufacturer have a mean lifetime of 870 hours, with a standard deviation of 70 hours. Assu

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The Batteries From A Certain Manufacturer Have A Mean Lifetime Of 870 Hours With A Standard Deviation Of 70 Hours Assu 1
The Batteries From A Certain Manufacturer Have A Mean Lifetime Of 870 Hours With A Standard Deviation Of 70 Hours Assu 1 (15.38 KiB) Viewed 34 times
The batteries from a certain manufacturer have a mean lifetime of 870 hours, with a standard deviation of 70 hours. Assuming that the lifetimes are normally distributed, complete the following statements. (a) Approximately 99.7% of the batteries have lifetimes between hours and hours. (b) Approximately 2 of the batteries have lifetimes between 730 hours and 1010 hours. 8 BO
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