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Given a sample mean (xbar) of 92mph and a population standard deviation sigma () of 3.7 from a previous study where n= 50 values, find

Given a sample mean (xbar) of 92mph and a population standard deviation sigma () of 3.7 from a previous study where n= 50 values, find the z value and p value. The data indicates that the population mean () for the speed of Tom's fast ball is 95 mph but we think it may be lower based on our data. Test the claim that < 95mph. Use 0.05 for alpha.

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