BE SURE TO STATE WHAT YOU CHOSE AS YOUR INITIAL BASE CASES FOR ANY CATEGORICAL VARIABLES. Please imitate regression techniques and analyses that have been shown in class. For example, your models should use dummy/indicator variables for categorical data. When following the principle of parsimony, you will be running regression several times and removing 'insignificant' variables. Save each of these regression outputs in separate worksheets within the single Excel file that you'll be submitting. Do not attempt to remove outliers, gather new data, or run a nonlinear regression