9/29/2025

Questions on R demonstration from last time

• See Kids198.R script for a variety of new commands
  

See GoogleDrive\Stat206-DataAnalysis-F2025\2ePowerPoint\See Sec3.3R

• Comparing two regression lines
  • Fitting separate regression lines (for different levels of a group variable)
  • Indicator variables
  • Comparing intercepts
  • Comparing slopes
  • Nested F-test

R Demonstration

• See GoogleDrive\Stat206-DataAnalysis-F2023\2eMarkkdown\Sec3.3.Rmd

In class exercises

• 3.44 on p. 150 (see MDs-Ex3-31.R)
• 3.13, 3.20, 3.22
• Exercise 3.32 on p. 147

Please read Sections 3.4, 3.5, and 3.6 for class on Wednesday.