An Experiment Involves Randomly Selecting a Sample of 256 Middle

question 37

Multiple Choice

An experiment involves randomly selecting a sample of 256 middle managers for study. One item of interest is their mean annual income. The sample mean is computed to be $35,420 and the sample standard deviation is $2,050. What is the standard error of the mean?

• A) $5.65
• B) $128.13
• C) $138.36
• D) $2,050
• E) $8.01

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