What is the probability that a random sample

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The shape of the distribution of the time required to get an oil change at a 10?-minute ?oil-change facility is unknown.? However, records indicate that the mean time is 11.7 minutes?, and the standard deviation is 4.4 minutes.

What is the probability that a random sample of n = 35 oil changes results in a sample mean time less than 10 ?minutes?

Reference no: EM132057721

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