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January 25, 2015

January 25, 2015

Posted by **Tangee** on Wednesday, May 1, 2013 at 9:51pm.

- Statistics (incomplete) -
**PsyDAG**, Thursday, May 2, 2013 at 1:51pmWhat is the Standard Deviation (SD)? Do you mean "x=4821" or ∑x = 4821 to calculate the mean?

99% = mean ± 2.575 SEm

SEm = SD/√n

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