{Model 1 and Model 3) Here we continue with the comparison oif,z values trom Models 1, 3 from lab 4. In the multiple regression model we explain percent more of the variability in the sales per square foot in the women's retail store using both explanatory variables median income and number of competitors= compared to the percent of variability in the sales per square foot explain when using the simple linear regression model with explanatory variable Median income