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April 18, 2015

April 18, 2015

Posted by **Patrick** on Thursday, August 7, 2014 at 12:02pm.

- statistics -
**PsyDAG**, Thursday, August 7, 2014 at 1:53pmZ = (mean1 - mean2)/standard error (SE) of difference between means

SEdiff = √(SEmean1^2 + SEmean2^2)

SEm = SD/√n

If only one SD is provided, you can use just that to determine SEdiff.

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability of the Z score. Is it more or less than .01?

- statistics -
**SigmaStat**, Wednesday, August 13, 2014 at 11:43amLearn Hypothesis Step By Step

goo. gl/o0BTXy

- statistics -
**lioioi**, Tuesday, September 23, 2014 at 3:05amchor

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