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6. The heights of a random sample of 9 supermodels are found to have a mean of 70 inches and a standard deviation of 1.5

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6. The heights of a random sample of 9 supermodels are found to have a mean of 70 inches and a standard deviation of 1.5 inches. Use a .01 significance level to test the claim that supermodels have heights with a mean that is greater than the mean height of 63.6 inches for women in the general population

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