Question

Suppose the horses in a large stable, have a mean weight of a 807 pounds and a variance of 5776. What is the probability that the mean weight of the sample of horses with differ from the population mean by greater than 18 pounds is 41 horses are sampled at random from the stable round your answer to four decimal places.

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The sampling distribution is N(807, 11.8692)
P(X > 807 + 18) + P(X < 807 - 18) = 0.1294

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