Question: The lifetime of a battery in a certain application is normally distributed with mean = 16 hours and standard deviation = 2 hours.

The lifetime of a battery in a certain application is normally distributed with mean μ = 16 hours and standard deviation σ = 2 hours.
a. What is the probability that a battery will last more than 19 hours?
b. Find the 10th percentile of the lifetimes.
c. A particular battery lasts 14.5 hours. What percentile is its lifetime on?
d. What is the probability that the lifetime of a battery is between 14.5 and 17 hours?

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a z 19162 150 The area to the right of z 150 is 00668 b The zscore of the 1... View full answer

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