Mathematics, 15.05.2021 01:00, dogsrdabest

An experiment involves selecting a random sample of 256 middle managers for study. One item of interest is their annual incomes. The sample mean is computed to be $35,420.00. If the population standard deviation is $2,450.00, what is the standard error of the mean

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An experiment involves selecting a random sample of 256 middle managers for study. One item of inter...