Hypothesis Tests Calculator

A two sample z-test is used to test whether or not the means of two populations are equal when the population standard…

A one sample z-test is used to test whether or not the mean of a population is equal to some value when…

An F-test is used to test whether two population variances are equal.. To perform an F-test for two samples, simply enter a…

A type II error occurs in hypothesis tests when we fail to reject the null hypothesis when it actually is false. The…

Hedges’ g is a way to measure effect size, which gives us an idea of how much two groups differ. It is…

When performing a two sample t-test, we typically assume that the variances between the two samples are equal. Under this assumption, we…

When you conduct a single statistical test to determine if two group means are equal, you typically compare the p-value of the…

The pooled standard deviation is a weighted average of two standard deviations from two different groups. It is typically used in a…

The Wilcoxon Signed-Rank Test is the non-parametric version of the paired t-test. It is used to test whether or not there is…

A two proportion z-test is used to test for a difference between two population proportions. The test statistic is calculated as: z…