Set up

System` | ||||||||

Statistics`ConfidenceIntervals` | ||||||||

Statistics`HypothesisTests` | ||||||||

Statistics`NormalDistribution` | ||||||||

The "p" in NormalPValue gives the area under the standard normal curve, but it goes to the left or right depending on whether z is negative or positive.

The left side of the previous figure is the same as this "CDF" ( CumulativeDistributionFunction ).

Created by Mathematica (October 2, 2003)