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April 18, 2014

April 18, 2014

Posted by **Shari** on Saturday, June 12, 2010 at 6:00am.

- Business research -
**PsyDAG**, Sunday, June 13, 2010 at 12:46pmZ = (mean1 - mean2)/standard error (SE) of difference between means

SEdiff = √(SEmean1^2 + SEmean2^2)

SEm = SD/√(n-1)

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 related to your Z score.

- Business research -
**PsyDAG**, Sunday, June 13, 2010 at 12:46pmZ = (mean1 - mean2)/standard error (SE) of difference between means

SEdiff = √(SEmean1^2 + SEmean2^2)

SEm = SD/√(n-1)

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 related to your Z score.

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