Learning Outcomes (click to see)

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

  1. Recall the basics of a 2-Sample t-Test (hypotheses, assumptions, statistic, test statistic, decisions) from your introductory statistics course.
  2. Recall how to perform the necessary calculations in R for a 2-Sample t-Test (organization of data, functions, plotting).
  3. Define (including graphically represent) the meanings of "signal" and "noise" within the context of a 2-Sample t-Test.
  4. Explain how the t test statistic (and related p-value) for a 2-Sample t-Test relates "signal" to "noise."

Preparation for Class

Practice