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January 28, 2015

January 28, 2015

Posted by **Anonymous** on Thursday, February 16, 2012 at 11:58am.

- statistics -
**PsyDAG**, Thursday, February 16, 2012 at 9:08pmZ = (score-mean)/SD = (25-mean)/3

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion (.1) that corresponds to a Z score.

Use that Z score in the above equation to find the mean. Then use that mean and Z score to find the new percentage.

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