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Determining Battery Lifetime Using Normal Distribution

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A company that manufactures batteries for laptop computers has determined that the average lifetime of its batteries is 360 days with a standard deviation of 30 days. Assuming the lifetime of the batteries is normally distributed, determine the number of days that at least 95% of the batteries will last beyond.

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Solution Summary

The solution gives detailed steps on calculating the battery lifetime with known probability under the assumption of normal distribution.

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