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Suppose that we will take a random sample of size n from a population having mean and standard deviation . For each of the following

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Suppose that we will take a random sample of size n from a population having mean and standard deviation . For each of the following situations, find the mean, variance, and standard deviation of the sampling distribution of the sample mean x : (a) =18,=2,n=22 (Round your answers of " i " and " i2n to 4 decimal places.)

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