Full Factorial Experimental Design Analysis of Reactive Dye Removal by Carbon Adsorption

Table 6

Statistical parameters for 2³ design.

Term	Effect	Coefficient	Standard error coefficient	𝑇	𝑃
Constant		21.79	0.3287	66.29	0.010
A	−20.74	−10.12	0.3287	−30.78	0.021
B	21.17	10.59	0.3287	32.20	0.020
C	−12.93	−6.47	0.3287	−19.67	0.032
AB	−10.92	−5.46	0.3287	−16.60	0.038
AC	6.95	3.47	0.3287	10.57	0.060
BC	−5.55	−2.78	0.3287	−8.44	0.075
S	0.929845
R-Sq	99.96%
R-Sq (adj)	99.75%