Topic: Unit 4: Inference for Quantitative Data: Means

Writing About Errors and Practical Significance on the Exam

Common Misconceptions About Errors and Significance

Costs of Wrong Decisions in Mean Tests

Using Confidence Intervals to Judge Practical Importance

Effect Size in Terms of the Original Units

Why the Wrong Procedure Gives Misleading Results

Same Data, Different Design, Different Procedure

Interval or Test: What Is the Question Asking

Spotting Independent Samples in Word Problems

Spotting Paired Designs in Word Problems