Multiple Choice
An experiment involves selecting a random sample of 256 middle managers at random 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) $128.125
B) $138.36
C) $2,050
D) $8.01
E) None of the choices are correct
Correct Answer:
Verified
Correct Answer:
Verified
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