2. (Your biggest thrill at Stanford)

3. Course Objectives You will be prepared for more advanced courses in multiple regression and analysis of variance.

4. Course Objectives You will be prepared for more advanced courses in multiple regression and analysis of variance. You will learn and appreciate the sensation of quanitification.

5. Course Objectives You will be prepared for more advanced courses in multiple regression and analysis of variance. You will learn and appreciate the sensation of quanitification. We will help each other so that no one will fail.

6. Course Objectives You will be prepared for more advanced courses in multiple regression and analysis of variance. You will learn and appreciate the sensation of quanitification. We will help each other so that no one will fail. You will fall in love with statistics!

8. http://www.stanford.edu/~hakuta/Courses/Ed160%20Website/Syllabus2007.html

10. How unusual is that?

11. Population The goal is to describe this as accurately as possible.

12. Population Sample You take a sample.

13. Population Sample X µ _ You describe the sample. _

15. Population Sample A X A µ _ Sample B X B Sample E X E Sample D X D Sample C X C _ _ _ _ The sample mean is just one of many possible sample means drawn from the population, and is rarely equal to the real population value.

17. Regression

18. X boys =53.75 _ X girls =51.16 _ How do we know if the difference between these means, of 53.75 - 51.16 = 2.59, is reliably different from zero?