org.statcato.statistics.inferential

Class HypothesisTestMatchedPairs

java.lang.Object

org.statcato.statistics.inferential.HypothesisTestMatchedPairs

public class HypothesisTestMatchedPairs
extends java.lang.Object

A hypothesis test for matched pairs,

Since:

1.0

Constructor Summary

Constructors

Constructor and Description
HypothesisTestMatchedPairs(int n, double mu, double s, double confidenceLevel, int testType) Constructor.

Method Summary

Modifier and Type	Method and Description
java.lang.String	criticalValue() Returns the critical value corresponding to the given confidence level and type of test.
double	pValue(double dBar) Returns the p-value corresponding to dBar in a t distribution.
double	testStatistics(double dBar) Returns the test statistics for the given sample mean of differences between matched pairs, dBar.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HypothesisTestMatchedPairs

public HypothesisTestMatchedPairs(int n,
                                  double mu,
                                  double s,
                                  double confidenceLevel,
                                  int testType)

Constructor.

Parameters:

n - sample size of differences between matched pairs

mu - hypothesized mean of differences between matched pairs

s - sample standard deviation of differences between matched pairs

confidenceLevel - confidence level

testType - (as defined in HypothesisTest)

Method Detail

testStatistics

public double testStatistics(double dBar)

Returns the test statistics for the given sample mean of differences between matched pairs, dBar.

t = (dBar - mu) / (s / sqrt(n))

Parameters:

dBar - sample mean

Returns:

test statistic t

criticalValue

public java.lang.String criticalValue()

Returns the critical value corresponding to the given confidence level and type of test. Uses the t distribution.

Returns:

critical value

See Also:

HypothesisTest

pValue

public double pValue(double dBar)

Returns the p-value corresponding to dBar in a t distribution.

Parameters:

dBar -

Returns:

p-value