STAT-141 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.  January 27 - January 31.    
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.  February 3 - February 7.
Day
 Class Covers
 Assignments, etc.
Monday
Last Day for Add/Drop

Tuesday
 Section 1-3.  Sampling techniques and experiments.
Section 1-4.  Experiments. Outline.
 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.
Thursday


Week 3.  February 10 - February 14.    
Day
 Class Covers
 Assignments, etc.
Tuesday
 Chapter 2 -- graphs and histograms.  My examples.
Common charts:  Wiki

3-1:  Measures of central tendency.  My notes on chapter 2 and 3 for the online students  Weighted means.
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.

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.
Thursday
 3-1:  Weighted means.

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

Week 4.  February 17 - February 21.
Day
 Class Covers
 Assignments, etc.
Tuesday
 3-3:  Measures of position.  Z scores, percentiles, quantiles, deciles.

     The empirical rule revisited, Chebychev's theorem revisited. 

      Z-score example.

     Quintiles example. 

3-4:  5 number summaries and box plots.

 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
Thursday
 4-1:  Intro to probability:  nomenclature and basic probability. Bring questions about the test to class!

Week 5.  February 24 - February 28.    
Day
 Class Covers
 Assignments, etc.
Tuesday
 Test 1.  Covers everything before probability
Thursday
 I was out sick. I was out sick.

Week 6.  March 3 - March 7.
Day
 Class Covers
 Assignments, etc.
Tuesday
 4-1:  Intro to probability:  nomenclature and basic probability.  Some examples.
4-2: the addition rule.  More examples.
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.
Thursday
 4-3:  Conditional probability and independence.

Here's some problems for class. 		4-3: 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.

Week 7.  March 10 - March 14.    
Day
 Class Covers
 Assignments, etc.
Tuesday
 We'll finish up 4-3.  Quick review.
 There are three quizzes for chapter 4 on D2L.  Quizzes 5, 6, and 7.  Take them soon.
Thursday
 5-1:  Discrete random variables.  My chapter 5 notes.

5-2:  Expectation of random variables.

5-1: 1-6 you should know except the baseball thing. 7-17 odd, 21, 23, 29.

5-2: 1, 7, 11, 13, 15, 17, 19.

Spring Holiday.  March 17 - March 21.    
Day
 Class Covers
 Assignments, etc.
Monday
 No Classes.
 No Classes.
Tuesday
 No Classes. No Classes.
Wednesday
 No Classes. No Classes.
Thursday
 No Classes. No Classes.
Friday
 No Classes. No Classes.


Week 8.  March 24 - March 28.
Day
 Class Covers
 Assignments, etc.
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
 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.

Week 9.  March 31 - April 4.
Day
 Class Covers
 Assignments, etc.
Tuesday
 Review for test 2.
Thursday
 Test 2.  Covers chapters 4 and 5.

Week 10.  April 7 - April 11.    
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.  April 14 - April 18.
Day
 Class Covers
 Assignments, etc.
Tuesday

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.  April 21  - April 25.    
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
 8.2: The Z-test.  Class examples. 8.2: 1 - 9 odd. 15, 17, 21, 23.

Week 13.  April 28 - May 2.
Day
 Class Covers
 Assignments, etc.
Tuesday
 8.3: The t-test.
8.4: z-test for proportions.
Class examples.
 8.3: 1, 3, 7, 13, 17, 19.
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
Thursday
 When do you use which test?
Review of chapter 6 and 7.
Review for test 3.  A couple last minute examples.
Study for test 3.

Week 14.  May 5 - May 9.
Day
 Class Covers
 Assignments, etc.
Tuesday
 Review for test 3.  Test 3.  Covers chapters 6, 7, and 8.
Thursday
 Go over test 3, review for final.

Finals Week.  May 12 - 15.  See the final exam schedule on my main page or the registrar's page.
Day
 Class and Final Exam Time
Monday
Tuesday
Wednesday
Thursday
STAT 141 05 Intro to Stats - Thu, May 15, 2025 -- 10:15 AM to 12:15 PM
MATH 101 05 / 101A 05 Math Thinking - Thu, May 15, 2025 -- 12:30 PM to 2:30 PM