The video below runs through model 3 which expands upon our multiple linear regression model by adding a nominal explanatory variable with multiple categories (ethnicity). If you want to see a full-screen version you can go to the Youtube page by either clicking on the Youtube icon in the bottom right corner of the video or by using the link above the preview.

NOTE: Some of the variables and outputs from this example may differ slightly to the examples on the main website pages. Do not worry - these changes are relatively minor and the general principles remain the same!

 

Example 2 - Multiple Linear Regression Model 3 Tutorial