Mitsubishi which operates and manages car rentals for DMMMSU employees found that the tire lifetime for their vehicles has a mean of 50,000 kilometers and standard deviation of 3500 kilometer. a. What would be the mean and standard error of the tire lifetime of a random sample of 50 vehicles? A population has a mean of 50 and a standard deviation of 6. (a) What are the mean and standard deviation of the sampling distribution of the mean for N=16? (b)What are the mean and standard deviation of the sampling distribution of the mean for N=20?
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