An Example of the Two-Sample T-Test Here is an example starting with the absolute basics of the two-sample t-test. The question being answered is whether there is a significant (or only random ...

This web calculator conducts a pooled-variance t-test for a difference between two populations' means when standard deviations are unknown and equal. The calculator includes a video definition, an ...

In the Two-Sample Test for Proportions task, you can determine whether two probabilities are the same. The data analyzed in this example are taken from a study measuring the accuracy of two computer ...

The core use of this statistic is for direct comparison between two samples to check their differences. The t-statistic is a ...