---
title: What-is-a-p-value-what-is-the-significance-of-p-value
description: The p-value, or probability value, tells you how likely it is that your data could have occurred under the null hypothesis. It does this by calculating the likelihood of your test statistic, which is
---
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# What-is-a-p-value-what-is-the-significance-of-p-value
The p-value, or probability value, tells you how likely it is that your data could have occurred under the null hypothesis. It does this by calculating the likelihood of your test statistic, which is the number calculated by a statistical test using your data.
p-value typically ≤ 0.05
This indicates strong evidence against the null hypothesis; so you reject the null hypothesis.
p-value typically \> 0.05
This indicates weak evidence against the null hypothesis, so you accept the null hypothesis.
p-value at cutoff 0.05
This is considered to be marginal, meaning it could go either way
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