What is P-value?
{{DISPLAYTITLE:''p''-value}} In [[statistics]], a '''''p''-value''' is the [[probability]] that the [[null hypothesis]] (the idea that a [[theory]] being tested is false) gives for a specific [[experiment]]al result to happen. ''p''-value is also called '''probability value'''. If the ''p''-value is low, the null hypothesis is unlikely, and the experiment has [[statistical significance]] as [[evidence]] for a different theory. In many fields, an experiment must have a ''p''-value of less than 0.05 for the experiment to be considered evidence of the alternative hypothesis. In short, a low p-value means a higher chance of the null hypothesis being false. {{math-stub}} [[Category:Statistics]]