Potato Peels as an Adsorbent for Heavy Metals from Aqueous Solutions: Eco-Structuring of a Green Adsorbent Operating Plackett–Burman Design

Table 4

Analysis of Variance (ANOVA) for transformed response.

Source	DF	Adj. SS	Adj. MS	F value	value
Model	3	10596.6	3532.2	1145.50	0.00
Linear	3	10596.6	3532.2	1145.50	0.00
HMC	1	10335.7	10335.7	3351.88	0.00
AD	1	250.0	250.0	81.06	0.00
CT	1	10.9	10.9	3.55	0.09
Error	9	27.8	3.1
Curvature	1	4.0	4.0	1.36	0.28
Lack-of-fit	7	23.6	3.4	56.40	0.10
Pure error	1	0.1	0.1
Total	12	10624.4

DF is degrees of freedom, SS is sum of squares, and MS is mean of squares. Insignificant variables and lack-of-fit appear italic.