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Welch (Unpooled Variance) t Tests and Confidence Intervals: Introduction
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Classroom Contents
Inference for Two Population Means
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- 1 Inference for Two Means: Introduction
- 2 The Sampling Distribution of the Difference in Sample Means (X_1 bar - X_2 bar)
- 3 Pooled-Variance t Tests and Confidence Intervals: Introduction
- 4 Pooled-Variance t Tests and Confidence Intervals: An Example
- 5 Welch (Unpooled Variance) t Tests and Confidence Intervals: Introduction
- 6 Welch (Unpooled Variance) t Tests and Confidence Intervals: An Example
- 7 Pooled or Unpooled Variance t Tests and Confidence Intervals? (To Pool or not to Pool?)
- 8 An Introduction to Paired-Difference Procedures
