Chapter 3 Linear Regression

Learning objectives:

  • Perform linear regression with a single predictor variable.
  • Estimate the standard error of regression coefficients.
  • Evaluate the goodness of fit of a regression.
  • Perform linear regression with multiple predictor variables.
  • Evaluate the relative importance of variables in a multiple linear regression.
  • Include interaction effects in a multiple linear regression.
  • Perform linear regression with qualitative predictor variables.
  • Model non-linear relationships using polynomial regression.
  • Identify non-linearity in a data set.
  • Compare and contrast linear regression with KNN regression.