Here is the link to this data: Source: https://www.kaggle.com/mirichoi0218/i...
When you have categorical variables that you want to include in a multiple linear regression model, you need to create indicator variables. In this video i show how to create those indicator variables. Additionally, I use matrices to find the least squares estimators, b. Furthermore, I show how to estimate the least squares estimators using the Data Analysis Toolpak in Excel. Lastly, I show how to create an interaction parameter for the model.