3/23/2018

Chapter 11 - Using Relationships to Make Predictions

• Three different tests for association (these tests are equivalent for simple linear regression models)
  • Correlation test
  • t test for slope coefficient
  • ANOVA F test
• Return to Exercise 13 on p. 443- Open Big12.R
• Saving residuals and fitted values
• Residual plots
• Questions from your reading:
  • What are influential points?
  • What is extrapolation?

Please read Chapter 12 for class on Monday