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September 30, 2014

September 30, 2014

Posted by **lucky** on Saturday, November 13, 2010 at 11:36am.

Choose one answer.

- statistics -
**PsyDAG**, Saturday, November 13, 2010 at 11:42amNo answers given, but here is the process.

Z = (mean1 - mean2)/standard error (SE) of difference between means

SEdiff = √(SEmean1^2 + SEmean2^2)

SEm = SD/√(n-1)

Since 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 related to that Z score.

- statistics -
**Anonymous**, Saturday, July 6, 2013 at 1:38pm.6914

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