Question: Tables Keypad The quality control manager at a computer manufacturing company believes that the mean life of a computer is 88 months, with a

Tables Keypad The quality control manager at a computer manufacturing company believes

Tables Keypad The quality control manager at a computer manufacturing company believes that the mean life of a computer is 88 months, with a variance of 81. If he is correct, what is the probability that the mean of a sample of 84 computers would differ from the population mean by less than 1.39 months? Round your answer to four decimal places. Answer B

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