"The theory behind the t-test", slides from a talk by Dr. Doug Elrod:

• Inferential Statistics introduction
• Hypothesis testing
• The meaning of "p"
• Assumptions for the t-test
• Hypothesis tested by the t-test
• Varieties of the t-test:
  • One-sample t-test
  • Two-sample (independent) t-test
  • Paired t-test
• Reporting the result of a t-test

To see the slides in the convenient "frame" format (for browsers that support that), if you jumped to a non-frame page, go to this page.

To see the slides in non-frame format (which might be useful if your search engine is translating them into your own language, which sometimes doesn't work with frames), go here.

For more information on how the normal curves in these slides were made, see Doug Elrod's Scalable Normal Curve.