/*
* File: ConfidenceStatistic.java
* Authors: Kevin R. Dixon
* Company: Sandia National Laboratories
* Project: Cognitive Foundry
*
* Copyright August 16, 2007, Sandia Corporation. Under the terms of Contract
* DE-AC04-94AL85000, there is a non-exclusive license for use of this work by
* or on behalf of the U.S. Government. Export of this program may require a
* license from the United States Government. See CopyrightHistory.txt for
* complete details.
*
*/
package gov.sandia.cognition.statistics.method;
import gov.sandia.cognition.util.CloneableSerializable;
/**
* An interface that describes the result of a statistical confidence test.
*
* @author Kevin R. Dixon
* @since 2.0
*
*/
public interface ConfidenceStatistic
extends CloneableSerializable
{
/**
* Gets the probability that the null hypothesis is correct. That is,
* the probability that two datasets were generated by the same
* distribution. Generally, social scientists try to demonstrate that
* NullHypothesisProbability less than 0.05 to show that distributions are
* different. This is often called the "p-value" of a significance test.
* @return
* Probability of the null hypothesis, often called "p-value"
*/
public double getNullHypothesisProbability();
/**
* Gets the statistic from which we compute the null-hypothesis probability.
* In an ANOVA, this would be the "F" statistic. In a t-test, this would
* be the "t" value. And so forth.
* @return
* Confidence statistic used to compute the null-hypothesis probability.
*/
public double getTestStatistic();
}