highly significantp = 0.0001
Multiple regression analysis was performed using the quadratic polynomial model described by Equation (1), linking the independent variables to EE response: (1) Y = 56.32 + 0.5366 X 1 + 1.73 X 2 − 0.2654 X 3 − 0.4980 X 1 X 2 + 0.5468 X 1 X 3 + 0.0390 X 2 X 3 − 8.95 X 1 2 - 6.52 X 2 2 − 5.14 X 3 2 Analysis of variance for the regression model ( Table 2 ) revealed that the model exhibited a highly significant F-value of 830.28 ( p = 0.0001).