T-tests

In this section, you will learn about t-tests – a powerful statistical tool for comparing group means. Conducting t-tests helps to determine if observed differences between groups are statistically significant or merely due to chance. 

The video below provides several examples regarding employing the 1-Sample t-test method of hypothesis testing:

In this video, hypothesis testing is conducted using the 2-Sample t-Test method:

The following Excel sheet can be used to carry out a t-test.

There are many free t-Test resources available on the Internet.  Here’s a quick demonstration: 

Here are a few demos that show how to conduct t-tests in Rstudio.