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December 22, 2014

December 22, 2014

Posted by **Kim** on Sunday, November 6, 2011 at 2:02pm.

- Math -
**PsyDAG**, Monday, November 7, 2011 at 12:19amZ = (mean1 - mean2)/SEm

SEm = SD/√n

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z score calculated.

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