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April 21, 2015

April 21, 2015

Posted by **Anonymous** on Tuesday, February 14, 2012 at 9:37pm.

- statistics -
**PsyDAG**, Wednesday, February 15, 2012 at 11:20amYour question is not clear.

How are you going to determine IQ level of the 20 persons? Would this relate to your inquiry?

Ho: mean = 100

Ha: mean > 100

If mean IQ = 100 and SD = 15 (as in WISC and WAIS):

Z = (score-mean)/SEm

SEm = SD/√n

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

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