The quality control manager at a computer manufacturing company believes that the mean life of a computer is 9999 months, with a standard deviation of 88 months. If he is correct, what is the probability that the mean of a sample of 6969 computers would be greater than 97.9497.94 months? Round your answer to four decimal places.

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The quality control manager at a computer manufacturing company believes that the mean life of a computer is 9999 months, with a standard deviation of 88 months.

If he is correct, what is the probability that the mean of a sample of 6969 computers would be greater than 97.9497.94 months? Round your answer to four decimal places.

 
 
 
 
Expert Solution
Step 1: Given information:

The random variable X represents life of computers. 

The mean life of a computer is, mu equals 99 months

The standard deviation of life of a computer is, sigma equals 8 months. 

The sample size is, n equals 69 computers. 

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