ļ»æp value calculator

P value calculator

Calculate the p-value for the following distributions:
Normal distribution, T distribution, Chi-Square distribution and F distribution.


P-value is the probability to get the current statistic result under the assumption that H0 is correct.
If you decide to reject the H0, P-value is the probability of type I error - rejecting a correct H0. A commonly used rule defines a significance level of 0.05. When the p-value is smaller than the significance level, you can reject the null hypothesis with a little chance of error. Another commonly used significance level is 0.01.

If you know the statistic value, choose the relevant distribution otherwise use one for the above test buttons.

p-value video