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February 1, 2015

February 1, 2015

Posted by **Jane Brown** on Friday, March 1, 2013 at 6:58pm.

- math-statistics (incomplete) -
**PsyDAG**, Saturday, March 2, 2013 at 11:08amWhat is the standard deviation?

a, b. Z = (score-mean)/SD

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

c. Same as above.

d. Z = (score-mean)/SEm

SEm = SD/√n

Use same table.

e. Same process as a.

f, g. Start with the table and insert the Z score in the top equation.

h. Same process as a.

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