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International Journal of Interdisciplinary Research

Table 4 Regression equation formed in terms of coded values for Oleophobol CPR

From: Soil release performance of cotton finished with oleophobol CPR and CMC-Na salt

Response (Y) Regression equation with all factors R 2 Adj. R 2 F- value
Soil release rating (Y1) Y1 = 4.667 + 0.458(X1)- 0.333(X2) + 0.250(X3) + 0.125(X4)-0.167(X1)2 - 0.354(X2)2 - 0.229 (X3)2 - 0.042(X4)2 - 0.125(X1*X2)- 0.125(X2*X4)-0.125(X1*X3) + 0.125(X3*X4) + 0.125(X1*X4) 0.902 0.787 7.868
K/S value (Y2) Y2 = 0.029 - 0.005(X1) + 0.003 (X2) - 0.002(X3) - 0.002(X4) + 0.002(X1)2 + 0.003(X2)2 + 0.001(X3)2 + 0.002(X1*X2) -0.001(X2*X3) + 0.001(X1*X3) – 002(X1*X4) 0.926 0.84 10.725