Topic: Inference errors and practical significance

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

Is a Statistically Significant Difference in Means Practically Important?

How Significance Level Affects Power and Errors

How Sample Size Affects Power in a t Test

Type II Error in a Test About Means

Type I Error in a Test About Means