Optimization of the Production Parameters of Composites from Sugarcane Bagasse and Iron Salts for Use in Dye Adsorption

Table 3

Analysis of variance for quadratic model adjusted to data set of Table 2.

Variation source	Sum of the square (SS)	Degree of freedom	Media of the square (MS)
Regression	37.693	9	4.188
Residuals	21.747	5	4.349
Lack of fit	21.008	3	7.003
Pure error	0.739	2	0.370
Total	59.440	14