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Suppose x has a distribution with a mean of 90 and a standard deviation of 20. Random samples of size n = 64 are

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Suppose x has a distribution with a mean of 90 and a standard deviation of 20. Random samples of size n = 64 are drawn. USE SALT (a) Describe the x distribution and compute the mean and standard deviation of the distribution. x has --Select- distribution with mean = (b) Find the z value corresponding to x = 85. z = and standard deviation (c) Find P(x

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