A sampling distribution is constructed based on a sample size of 25. If the sampling distribution...
A sampling distribution is constructed based on a sample size of 25. If the sampling distribution has a mean of 500 and a standard error of 15, what is the standard deviation of the original comparison population?
A. 60
B. 75
C. 30
D. 50
Homework Answers
CORRECT OPTION(B)=75
The standard error is the standard deviation of the population divided by the square root of N. In this case,
15=(Standard deviation)/sq root of 25
15=standard deviation/5
standard deviation=15*5=75
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