Week 9

ANOVA and Simple Linear Regression
Published

November 20, 2023

Modified

November 26, 2023

Exam retakes

  • Retakes for Exams 1 & 2 will be in class on Wed, Nov 29th
  • Retake for Exam 3 will be on Fri, Dec 12th; time & place TBD

Day 14

  • ANOVA = Analysis of Variance
  • Comparing more than 2 means
  • Section 5.5
Note

I moved the Kruskal-Wallis test to Day 17, when we cover the other non-parametric tests.

Slides

Note: the title slide of the recording mistakenly shows Day 17 instead of Day 13. I fixed this in the posted slides.

Datasets

All datasets can be found on GitHub

Class discussion

Class discussion Google doc link

  • Slide 12: “Hypothetical examples” question
  • Slide 29 questions
  • Questions from HW 8
    • Book # 5.46, 5.48, R1, 5.44

Day 15

  • Simple Linear Regression (part 1)
  • Sections 6.1, 6.2

Slides

Datasets

All datasets can be found on GitHub

Homework

  • HW 8 due on Mon, 11/27
    • Covers Days 14-15
    • For book exercises, make sure to include all steps in a hypothesis test (where applicable) as outlined in the class notes.
    • Do not forget to include a discussion on whether you think the test conditions have been satisfied. Are there assumptions you need to make in order for them to be satisfied? Whether you believe they are satisfied or not, continue to run the hypothesis test as instructed.

Recordings

  • Pre-recorded lessons are on Echo Cloud (aka echo 360 or echo video).
    • These can be accessed in Sakai by navigating to the BSTA 511/611 page and clicking on the Echo Cloud option in the left-side menu.
    • This will redirect you to an echo video page with a list of pre-recorded videos.
  • In-class recording links are on Sakai. Navigate to Course Materials -> Schedule with links to in-class recordings. Note that the password to the recordings is at the top of the page.