The average life of a certain type of small motor is 10, Ask an Expert

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The average life of a certain type of small motor is 10 years with a standard deviation of 2 years. The manufacturer replaces free all motors that fail while under guarantee. If she is willing to replace only 3% of the motors that fail, how long a guarantee should be offered? Assume that the lifetime of a motor follows a normal distribution.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91019464

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