Week 6

Confidence intervals and hypothesis tests for one mean
Published

October 30, 2023

Modified

October 31, 2023

Day09

  • Confidence intervals for one mean (single-sample)
  • Student’s t-distribution

Slides

Class discussion

Class discussion Google doc link

  • Slide 15: What percent CI was being simulated in this figure?
  • Slide 22: Calculate CI
  • From HW 5
    • R exercise R1: YRBSS CI for weights
    • Book exercises 4.4, 4.6, 5.6, 5.10

Day10

Part 1

  • Hypothesis testing for one mean (single-sample)
  • CIs vs. hypothesis tests
  • R projects, here::here(), and loading data into R from a file
  • Running a t.test in R

Part 2

  • Inference for two-sample paired data

Slides

Part 1

Part 2 (Class discussion)

Datasets

All datasets can be found on GitHub

Class discussion

Class discussion Google doc link

  • Part 2 of Day 10
  • See specific questions in orange on (most) slides.

Homework

  • HW 5 due on Sat, 11/4
    • Covers Days 9-10

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.