After completing this module, you should be able to ...

- Identify when a two-sample t-test is appropriate.
- Describe what a homogeneity of variance test is and why it is required within a two-sample t-test.
- Perform the 11 steps of a significance test in a two-sample t-test situation.

## Preparation for Class

Use the materials below to answer the questions on this preparation guide.

- Reading
- 2-Sample t-Test Example [22 mins]
- 2-Sample t-Test in R [8 mins]