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In the final estimated regression model in Question 3, please try to improve the model by considering the interaction term Price/Earnings Ratio*
In the final estimated regression model in Question 3, please try to improve the model by considering the interaction term Price/Earnings Ratio* Debt/EBITDA Ratio. Provide statistical analysis on whether it is necessary to add this term to the final model in Question 3 at level 10% and point out the p-value.