Author Question: All possible random samples of 200 middle managers are selected from a population for a study ... (Read 116 times)

nelaaney · **on:** Jun 24, 2018

All possible random samples of 200 middle managers are selected from a population for a study concerning their mean annual income. The population standard deviation is computed to be 2,248.5.

What is the standard deviation of the sampling distribution of the means?A) 47.42
B) 11.24
C) 158.99
D) 57.86

Question 2

Internal data might include all of the following except ________.

A) material costs
B) economic conditions
C) accounts receivable
D) sales.