Question: 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

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 $1,700.00, what is the standard error of the mean? Multiple Choice O $106.25 O $1,700.00 O $116.49 O $6.64

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