Linear regression with a multiple predictors II

Lecture 17

Dr. Mine Çetinkaya-Rundel

Duke University
STA 199 - Spring 2024

2024-03-21

Warm up

While you wait for class to begin…

Any questions from prepare materials?

Project proposals

Any questions?

From last time

Application exercise: `ae-12-modeling-penguins-multi`

Continue work on ae-12-modeling-penguins-multi.qmd.

Goals:

Recap modeling with a single predictor
Fit and interpret models with multiple predictors
Distinguish between additive and interaction models

Model selection and overfitting

Goals

Review prediction and interpretation of model results
Review main and interaction effects models
Discuss model selection further

Application exercise: `ae-13-modeling-loans`

Go to your project called ae.
If there are any uncommitted files, commit them, and push.
Work on ae-13-modeling-loans.qmd.