Inference for Two Population Means

This introductory course covers inference for two population means through sampling distributions, pooled-variance and Welch t tests, and paired-difference procedures, with confidence intervals and examples.

Syllabus

Inference for Two Means: Introduction.
The Sampling Distribution of the Difference in Sample Means (X_1 bar - X_2 bar).
Pooled-Variance t Tests and Confidence Intervals: Introduction.
Pooled-Variance t Tests and Confidence Intervals: An Example.
Welch (Unpooled Variance) t Tests and Confidence Intervals: Introduction.
Welch (Unpooled Variance) t Tests and Confidence Intervals: An Example.
Pooled or Unpooled Variance t Tests and Confidence Intervals? (To Pool or not to Pool?).
An Introduction to Paired-Difference Procedures.