SOLUTION: Does anyone understand this question? The standard deviation of a distribution is 20. If a sample of 225 is selected, what is the standard error of the mean?

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Question 137841: Does anyone understand this question?

The standard deviation of a distribution is 20. If a sample of 225 is selected, what is the standard error of the mean?

Answer by stanbon(48568) About Me  (Show Source):
You can put this solution on YOUR website!
The standard deviation of a distribution is 20. If a sample of 225 is selected, what is the standard error of the mean?
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20/sqrt(225) = 20/15 = 4/3 = 1.33333333....
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Cheers,
Stan H.