Mathematics, 07.04.2020 19:13 kellimcollier8294

For a sample of n=64, the probability of a sample mean being less than 20.5 if u = 21 and sigma = 1.31 is (Round to four decimal places as needed.) Would the given sample mean be considered unusual?

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For a sample of n=64, the probability of a sample mean being less than 20.5 if u = 21 and sigma = 1....