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2) The number of miles a tire lasts before having to be replaced due to tread wear has a mean of 30,000 miles and a
2) The number of miles a tire lasts before having to be replaced due to tread wear has a mean of 30,000 miles and a standard deviation of 5,000 miles. If a sample of 300 tires is taken what are the mean and standard deviation of the sampling distribution of how long the tires will last
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