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April 20, 2014

April 20, 2014

Posted by **Sue** on Wednesday, April 1, 2009 at 11:16pm.

- Stats -
**PsyDAG**, Thursday, April 2, 2009 at 11:29amZ = difference between means/√SE^2

SE = SD/√(n-1) (or just √n)

Look up value in table in back of statistics text labeled something like "areas under normal distribution.

I hope this helps. Thanks for asking.

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