Compare each of the simple regression models and this general (multiple) regression model. Are we improving the explanatory power of the model by adding the other variables? (Remember to discuss in the context of R2, adjusted R2 and the standard error of the model.)1. Comparing regression of EC on AT against the model with EC on AT, WD, and TP2. Comparing regression of EC on WD against the model with EC on AT, WD, and TP3. Comparing regression of EC on TP against the model with EC on AT, WD, and TP

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