10.1 Introduction

Chapter 9 continued the study of statistical inference by developing a confidence interval. A confidence interval is a range of values within which we expect the population parameter to occur.

Goals

1. Define a hypothesis and Hypothesis Testing

2. Describe the five-step hypothesis testing procedure

3. Distinguish between a one-tailed and a two-tailed test of hypothesis.

4. Conduct a test of hypothesis about a population mean.

5. Conduct a test of hypothesis about a population proportion.

6. Define Type I and Type II errors.

7. Tests concerning proportions.

8. Describe the characteristics of Student’s t distribution

9. Conduct a test of a hypothesis about the difference between two independent population means.

10. Conduct a test of a hypothesis about the difference between two population proportions.

11. Conduct a test of a hypothesis about the mean difference between paired or dependent observations.

12. Understand the difference between dependent and independent samples.