Inference for two-way tables

Lecture 18

Dr. Mine Çetinkaya-Rundel

Duke University
STA 101 - Fall 2023

Warm up

Announcements

• Project 2: Video presentations, no in person meeting on Thu, Dec 14
• Exam 2:
  • Yes, you can have a cheat sheet
  • Minor update in coverage: Up to end of inference with proportions, inference with means to start after exam

Inference for two proportions

NC poll on equality

A September 16-19, 2023, asked North Carolina voters, among other issues, about issues of equality and women’s progress. Specifically, one of the questions asked:

Which of these two statements come closest to your own views—even if neither is exactly right?

• The country has made most of the changes needed to give women equal rights with men.

• The country needs to continue to make changes to give women equal rights to men.

Application exercise

Go to Posit Cloud and continue the project titled ae-13 - Equality.

Inference for two-way proportions

First:

Vote on Canvas under 2023-11-08 Check-in with the access code twoway.

Then:

Go to Posit Cloud and continue the project titled ae-14 - Candidate talk.