## Study Guide - part III Statistics class Friday, July 13th, 2012 - 1:00-1:50 p.m.

### Chapter 14: Confidence Intervals: The Basics: Chapter 14 summary and notes. Chapter 15: Tests of Significance: The Basics: Chap 15 summary and notes. The Yellowstone Bears problem (former homework). Weigh this carefully! :-) Chapters 18: Inference about a Population Mean: Chap 15 and Chap 18 summary and notes. Chapter 19: Two-Sample Problems: Chapter 19 summary and notes. (Last page of PDF for Chapter 18).

1. Solutions: Exercises 14.30 and 19.34. You received these as a handout out on Handi-Mart Day (oops, 07/11 Wednesday review day).

2. Quiz One solution with extra material on how to find the sample size needed to be 95% confident a difference of the same size in the larger sample allows us to reject the null hypothesis. Mu0 = \$46,000 and X-bar = \$45,678 with denominator = -322 in the equation.

3. ...

4. ...

VIP: Chapter 15: Tests of Significance: The Basics concepts and practice problems. NULL and ALTERNATIVE HYPOTHESIS. P-VALUES. SIGNIFICANCE.

Chapter 15 CLICKER questions - see Chapter 15 CLICKER questions for practice and study.

Chapter 15 Power Point used in weeks #1 and #2. YOU HAVE THESE AS A HANDOUT!

```CHAPTER 18

Part III students - III FINAL EXAM PRATICE QUESTIONS:

Exercise 18.5 Critical Values - page 438;
18.7 Ancient Air - page 439;
Exercise 18.9 - page 441.

(Note:  See page 712 of textbook for correct answers)

Sample mean = SEM)
n - 1 is the "degrees of freedom".

--------------------------------------------------------------------------
SEM = s / SquareRoot( n )      SEM = Standard Error of the Mean
--------------------------------------------------------------------------
-        -            -
SEM                                  S        E            M
-        -            -

Summer 2012 - Redo these HOMEWORK problems you did from chapter 18

18.2 page 434
18.6 page 438 - part (b) only!
18.8 page 441  (Hint: see 18.9)
```
Chapter 18 CLICKER questions: Chapter 18 CLICKER questions for review. Note: We only did 10 of these Chapter 18 Clicker questions!

Chapter 18 Power Point you received as a handout.