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Find the p-value after you find the z-score.
z = (x - μ) / σ
http://www.ehow.com/how_4555631_calculate-zscore-statistics.html
here's an example how to find the p-value:
https://controls.engin.umich.edu/wiki/images/3/3e/Screen_shot_z-score.JPG
The z-score is 1.13 and the p-value is .87076