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    Empirical Rule: The lifetimes of light bulbs of a particular type are normally distributed.

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    The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of 5 hours. What percentage of the bulbs have lifetimes that lie within one standard deviation of the mean on either side? Use the 68-95.99.7 Rule.

    Please give a through and simplistic explanation in the answer.

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    https://brainmass.com/statistics/normal-distribution/empirical-rule-the-lifetimes-of-light-bulbs-of-a-particular-type-are-normally-distributed-399413

    Solution Summary

    The solution provides step by step method for the calculation of probability using the Z score. Formula for the calculation and Interpretations of the results are also included.

    $2.19

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