1. Statistics 3502/6304 Prof. Eric A. Suess Chapter 4

2. Inferences about Population Central Values Estimation and Confidence Intervals Hypothesis Testing

3. Estimation of the Population Mean

6. See Table 5.2 on page 229 for a z-values for different Confidence Levels. When σ is unknown, it will be estimated using the sample standard deviation s. See Page 225. Later.

7. Hypothesis Testing of the Population Mean

8. Examples: Blood Testing Jury trial Errors: Type I Error, False Positive, Convict an innocent prisoner Type II Error, False Negative, Release a guilty prisoner See Table 5.3 on page 234

9. Hypothesis Testing of the Population Mean One-tailed Test Example 5.5 page 235, 236 Two-tailed Test Example 5.6 page 237 Summary of Hypothesis Test for µ, when σ known. Page 238

10. Hypothesis Testing of the Population Mean

13. The z test statistic uses the z-table that we know. See Table 1 at the start of the book, or Table 10 at the end of the book at the bottom. The t test statistic uses the t-table that we know. See Table 10 at the back of the book.

14. Example Next time we will look at a number of examples of Confidence Intervals and Hypothesis Testing.