STAT-141A Intro to Statistics with Recitation
Basic class information
  • The book for this class will be Elementary Statistics: A Step by Step Approach 10th edition by Allan Bluman.  Earlier editions don't really work for the homework sets.  ISBN:  9781259755330.

Week 1.  August 26 - August 30.    
Day
 Class Covers
 Assignments, etc.
Tuesday
 The syllabus and my expectations.

What is statistics?


 Get the book, read section 1-1 and 1-2.
Thursday
 Sections 1-1 and 1-2:  Variables and the beginnings of sampling. Outline.

My chapter 1 notes.

 1-1 problems 1-15 only the odds on page 5.
1-2 problems 1-15 only the odds on page 10.

Week 2.  September 2 - September 6.
Day
 Class Covers
 Assignments, etc.
Monday
 No Classes
 No Classes
Tuesday Add/Drop
 Section 1-3.  Sampling techniques and experiments. Outline.

Section 1-4.  Experiments. Outline.

Chapter 2 -- graphs and histograms.  My examples.

Common charts:  Wiki
 1-3 problems 7-15 only the odds on page 17.

1-4 problems 1, 3, 7, 9, 11,15, 17, 23, 25 starting on page 24.

There's a quiz on D2L.  Quiz 1.  Take it soon.

2.2 (page 65): 1, 3 is a good idea, 5, and 20 (Answers to #20 are 0, 14, 10, 16).
2.3 (page 90): 5, 17.
Thursday
 3-1:  Measures of central tendency.  My notes on chapter 2 and 3 for the online students  Weighted means. 3.1 (page122): 3, 5, 7 (skip the midrange for those), 25, 27, 28 (answer is 82.67), 29.
The chapter 2 quiz is on D2L.  Quiz 2.  Take it soon.

Week 3.  September 9 - September 13.    
Day
 Class Covers
 Assignments, etc.
Tuesday
 3-2:  Measures of variation -- variance, SD, range.  The empirical rule, Chebychev's theorem. 3.2 (page143): 1, 3, 4, 7, 9, 11. Be sure to be able to compute the SD and variance by hand, but don’t
perform calculations without a calculator/computer.
3.2 (page145): 29, 31, 35, 41
Thursday
 3-3:  Measures of position.  Z scores, percentiles, quantiles, deciles,  Quintiles example.

Z-score example.
3.4:  5 number summaries and boxplots. 		There are two quizzes for chapter 3 on D2L.  Quiz 3 and Quiz 4.  Take them soon.

3.3 (page159): 1- 7 all. 9 – 15 odd.
3.4 (page172): 1-13 odd

Week 4.  September 16 - September 20.
Day
 Class Covers
 Assignments, etc.
Tuesday

Thursday
 4.1:  Intro to probability:  nomenclature and basic probability. 4.1: 1-10 all, 13, 15, 17, 21, 23, 27, 31, 33.

Week 5.  September 23 - September 27.    
Day
 Class Covers
 Assignments, etc.
Tuesday
 Test 1.  Covers everything before probability
Thursday
 I'll finish up 4.1.  Some review examples.
4.2: the addition rule.
Here's my chapter 4 notes. 		4.1: 1-10 all, 13, 15, 17, 21, 23, 27, 31, 33.

4.2: 1, 2, 3, 5, 9, 15, 17, 23.

Week 6.  September 30 - October 4.
Day
 Class Covers
 Assignments, etc.
Tuesday
 4.3:  Conditional probability and independence.

Here's some problems for class. 		.3: 1, 5, 11, 15, 21, 25, 29, 31, 33, 35.

Here are some additional probability problems and the solutions.

Here's a not-too-evil set of exercises on conditional probability with the answers.
Thursday
 We'll finish up 4.3. There are three quizzes for chapter 4 on D2L.  Quizzes 5, 6, and 7.  Take them soon.

Week 7.  October 7 - October 11.    
Day
 Class Covers
 Assignments, etc.
Tuesday
 5.1:  Discrete random variables.  My chapter 5 notes.

Cooties. 		5.1: 1-6 you should know except the baseball thing. 7-17 odd, 21, 23, 29.
Thursday
 5.2:  Expectation of random variables. 5.2: 1, 7, 11, 13, 15, 17, 19.
Quiz 8 covers random variables and expectations.  It's ready on D2L.
Friday (Grades)


Week 8.  October 14 - October 18.
Day
 Class Covers
 Assignments, etc.
Monday (Reg)

Tuesday
 5.3:  Binomial random variables.  Some examples for class. 5.3: 1, 5, 7, 9, 11, 17, 21.
Quiz 9 is the last one before test 2.  It's ready on D2L.
Thursday
 Any cleanup for test 2.
6.1.  Introduction to the normal curve.
My chapter 6 notes. 		6.1: 1-5 odd. 7-25 odd (Do 3 of them.) 27-40 odd. (Do 3 of them.) 41-49 odd.
6.2: 3, 5, 9, 11, any of the odds from 13 to 29 are pretty good. Definitely do 31 and 33.

Week 9.   October 21 - October 25.    
Day
 Class Covers
 Assignments, etc.
Tuesday
 Test 2.  Covers chapters 4 and 5.
Thursday
 6.1:  Introduction to the normal curve.  Notice the Z and T table at the top, btw.
6.2:  "Non-standard" normal curves.  Examples

Something cool. 		6.1: 1-5 odd. 7-25 odd (Do 3 of them.) 27-40 odd. (Do 3 of them.) 41-49 odd.
6.2: 3, 5, 9, 11, any of the odds from 13 to 29 are pretty good. Definitely do 31 and 33.

Week 10.  October 28 - November 1.
Day
 Class Covers
 Assignments, etc.
Tuesday
 6.3:  The central limit theorem.  Way more than what we need, but here's the wiki. 6.3: 1-5 odd, 7, 11, 13, 23.
Quiz 10 covers chapter 6.
Thursday
 7.1:  Point estimators, z-confidence intervals.  Don't worry about minimal sample sizes.  Examples.

My chapter 7 notes. 		7.1: 1, 5, 7 – 11 odd, 17 – 21 odd.

Week 11.  November 4 - November 8.
Day
 Class Covers
 Assignments, etc.
Tuesday
 Same as Thursday.
Thursday
 7.2:  confidence intervals for means, variance unknown.
7.3:  confidence intervals for proportions.
Wiki entry on the t-distribution.
Class examples. 		7.2: 1, 3, 4, 5, 11-15 odd
7.3: 1 – 11 odd, add #2 as well.
Quiz 11 covers chapter 7.

Week 12.  November 11 - November 15.    
Day
 Class Covers
 Assignments, etc.
Tuesday
 8.1:  Introduction to hypothesis testing.
My chapter 8 notes.
Some quick examples. 		8.1: 1 - 13 odd.
Thursday


Week 13.  November 18 - November 22.
Day
 Class Covers
 Assignments, etc.
Tuesday
 8.2: The Z-test.  Class examples.
8.3: The t-test.
 8.2: 1 - 9 odd. 15, 17, 21, 23.
8.3: 1, 3, 7, 13, 17, 19.
Thursday
 8.4: z-test for proportions.
Class examples.
When do you use which test? 
8.4: 3- 13 odd. (15 -19 odd are good, but overkill for most of you.)

When you are ready, there are 3 quizzes.
Quizzes 12, 13, and 14 cover hypothesis testing

Thanksgiving Week.  November 25  - November 29.    
Day
 Class Covers
 Assignments, etc.
Monday

Tuesday
 No classes. No classes.
Wednesday
 No classes. No classes.
Thursday
 No classes. No classes.
Friday
 No classes. No classes.

Week 14.  December 2 - December 6.
Day
 Class Covers
 Assignments, etc.
Tuesday
 Review for test 3.  A couple last minute examples.
Test 3.  Covers chapters 6, 7, and 8.
Thursday
 Go over test 3, review for final.

Week 15 / Finals Week.  December 9 - December 13.
See the final exam schedule on the registrar's page. All finals are in the same room as the class.
Day
 Final Exam
Monday
Tuesday
 Math Thinking:  Tuesday, December 10, 2024 from 8:00 AM to 10:00 AM
Stats:  Tuesday, December 10, 2024 from 10:15 AM to 12:15 PM
Wednesday
Thursday
Friday