SOLUTION: Assume a random sample of n measurements is selected from a population with a mean of 20 and a standard deviation of 40. What's ox?

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Question 1140470: Assume a random sample of n measurements is selected from a population with a mean of 20 and a standard deviation of 40. What's ox?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Not clear what question is being asked
The mean of the sample is 20
the sd of the sample is 40/sqrt(20)=8.95 or 4 sqrt(5) (exact value)