Question: An experiment involves selecting a random sample of 256 middle managers for study. One item of interest is their annual income. The sample mean is

An experiment involves selecting a random sample of 256 middle managers for study. One item of interest is their annual income. The sample mean is computed to be $35,420. If the population standard deviation is $2,050, what is the standard error of the mean?(Round to 3 decimal places.)

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