Homework Help: statistics

Posted by Anonymous on Tuesday, October 4, 2011 at 3:53pm.

Suppose that the population standard deviation (ó) for a normally distributed standardized achievement test (ACT) is 6. What would the standard error of the sample mean (óxbar) be if we were to draw a random sample of 36 test scores?

statistics - MathGuru, Tuesday, October 4, 2011 at 5:23pm
Standard Error = standard deviation divided by the square root of the sample size

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