A

**two sample t-test**is used to test whether or not the means of two populations are equal.This type of test assumes that the two samples have equal variances. If this is not the case, you should instead use the Welch’s t-test calculator.

To perform a two sample t-test, simply fill in the information below and then click the “Calculate” button.

**Sample 1**

**Sample 2**

**t = ** -1.608761

**df = ** 22

**p-value (one-tailed) = ** 0.060963

**p-value (two-tailed) = ** 0.121926