jrkirby168 jrkirby168

06-12-2022
Mathematics

contestada

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 $2,050.00, what is the standard error of the mean? a) $128.13 b) $138.36 c) $2,050.00 d) $8.01

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