# 6.7 - Lesson 6 Summary

6.7 - Lesson 6 Summary## Objectives

Upon successful completion of this lesson, you should be able to:

- Identify Type I and Type II errors
- Select an appropriate significance level (i.e., \(\alpha\) level) for a given scenario
- Explain the problems associated with conducting multiple tests
- Interpret the results of a hypothesis test in terms of practical significance
- Distinguish between practical significance and statistical significance
- Explain how changing different aspects of a research study would change the statistical power of the tests conducted
- Compare and contrast confidence intervals and hypothesis tests