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The mean annual salary of a sample of 250 office managers is $54, 190 with a standard deviation of $4,330. Calculate the margin of error

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The mean annual salary of a sample of 250 office managers is $54, 190 with a standard deviation of $4,330. Calculate the margin of error and construct the 98% confidence interval for the true population mean annual salary for office managers. We may assume that the sample standard deviation s is an accurate approximation of the population standard deviation o (i.e., s = o), given that the sample size is so large (n > 200)

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