WilcoxonSignedRankTest Class

[SerializableAttribute]
public class WilcoxonSignedRankTest : WilcoxonTest

<SerializableAttribute>
Public Class WilcoxonSignedRankTest
	Inherits WilcoxonTest

// This example has been adapted from the Wikipedia's page about
// the Z-Test, available from: http://en.wikipedia.org/wiki/Z-test

// We would like to check whether a sample of 20
// students with a median score of 96 points ...

double[] sample = 
{ 
    106, 115, 96, 88, 91, 88, 81, 104, 99, 68,
    104, 100, 77, 98, 96, 104, 82, 94, 72, 96
};

// ... could have happened just by chance inside a 
// population with an hypothesized median of 100 points.

double hypothesizedMedian = 100;

// So we start by creating the test:
WilcoxonSignedRankTest test = new WilcoxonSignedRankTest(sample,
  hypothesizedMedian, OneSampleHypothesis.ValueIsSmallerThanHypothesis);

// Now, we can check whether this result would be
// unlikely under a standard significance level:

bool significant = test.Significant; // false (so the event was likely)

// We can also check the test statistic and its P-Value
double statistic = test.Statistic; // 40.0
double pvalue = test.PValue; // 0.98585347446367344