11. Which independent variable has the largest effect on the gross drug costs? Run standardized coefficients.Linear Regression Results The REG Procedure Model: Linear_Regression_Model Dependent Variable: GrossDrugCost Number of Observations Read 30160 Number of Observations Used 30160 Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 3 4862379352 1620793117 846.80 <.0001 error corrected total root mse r-square dependent mean adj r-sq coeff var parameter estimates standard standardized variable df estimate t value pr> It] Estimate Intercept 306.34522 45.82475 6.69 <.0001 risk score age gender based on the result riskscore has highest standardized estimate so that largest effect gross drug cost>