Replacement times for new Ford cars are normally distributed with a mean of 7.25 years and a standar
Question: Replacement times for new Ford cars are normally distributed with a mean of 7.25 years and a standard deviation of 1.7 years. Find the probability (a=.05) 9 randomly selected Ford automobiles will have a mean replacement time less than 6.9 years.
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Solution Format: Word Document
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