1 answer

The lifetime of a certain type of battery is normally distributed with mean value 13 hours...

Question:

The lifetime of a certain type of battery is normally distributed with mean value 13 hours and standard deviation 1 hour. The

The lifetime of a certain type of battery is normally distributed with mean value 13 hours and standard deviation 1 hour. There are nine batteries in a package. What lifetime value is such that the total lifetime of all batteries in a package exceeds that value for only 5% of all packages? (Round your answer to two decimal places.) X hours

Answers

solution Geven, 0 mean 13 hours standard denation, T- 1 hour nza top 54 70.05 1.645 The formula of Z-score Xo-ll alta 1.645 Y

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