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Suppose that the distance, X, of fly balls hit to the outfield (in baseball) is normally...

Suppose that the distance, X, of fly balls hit to the outfield (in baseball) is normally distributed with a mean of 250 feet and a standard deviation of 50 feet. We randomly sample 60 fly balls. What is the standard deviation of the distribution of sample means, , with sample size 60?
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Answer #2

Solution :

Given that ,

mean =   = 250

standard deviation = = 50

n = 60

mean of the distribution of sample means​​​​​​= = 250

standard deviation of the distribution of sample mean = =  / n =50 / 60=6.4550

answered by: anonymous
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