10/8/2025

Minute Cards - Please tell me how you feel about this class so far. Share your thoughts on the textbook, the use of RStudio, RMarkdown files to illustrate models for examples, class lectures and discussions, the use of PowerPoint slides, activities and labs, homework assignments, problem sessions, or anything else you would like me to consider as we move forward with regression models, ANOVA models, and other data analysis techniques.

Techniques for choosing predictors

• Predictor selection methods
• Possible Criteria
  • All Subsets
  • Mallow's Cp
  • Backward elimination
  • Forward selection
  • Stepwise

See GoogleDrive\Stat206-DataAnalysis-F2025\2ePowerPoint\Sec4.2R

R Deomonstration

• See GoogleDrive\Stat206-DataAnalysis-F2025\2eMarkkdown\Sec4.2.Rmd

Handouts - Class Activities

• All Subsets Regression
• Permutation Test for Correlation

Take home Quiz #2 (handout on added variable plot) is due today.

Please complete your reading of Chapter 4 for class on Monday, October 13.