. 2019 Mar 22;8(3):107. doi: 10.3390/foods8030107

Table 5.

Analysis of variance (ANOVA) of responses for L*, a*, and b* experiments.

Source	L*					a*				b*
Source	DF	SS ¹	MS	F-Value	p-Value	SS ¹	MS	F-Value	p-Value	SS ¹	MS	F-Value	p-Value
Model	5	3.22643	0.64529	241.98	0	2.32207	0.46441	168.28	0	8.45916	1.69183	217.92	0
Linear	2	2.72531	1.36265	510.98	0	0.35788	0.17894	64.84	0	0.33535	0.16768	21.6	0.001
X ₁	1	2.30493	2.30493	864.33	0	0.34711	0.34711	125.78	0	0.33403	0.33403	43.02	0.0003
X ₂	1	0.42038	0.42038	157.64	0	0.01077	0.01077	3.9	0.0888	0.00132	0.00132	0.17	0.6923
Square	2	0.44012	0.22006	82.52	0	0.0314	0.0157	5.69	0.0341	7.70772	3.85386	496.39	0
X₁*X₁	1	0.00148	0.00148	0.56	0.48	0.00688	0.00688	2.49	0.1583	4.98007	4.98007	641.45	0
X₂*X₂	1	0.38949	0.38949	146.06	0	0.01602	0.01602	5.81	0.0468	4.91618	4.91618	633.22	0
Two-way Interaction	1	0.06101	0.06101	22.88	0.002	1.9328	1.9328	700.36	0	0.41609	0.41609	53.59	0.0002
X₁*X₂	1	0.06101	0.06101	22.88	0.002	1.9328	1.9328	700.36	0	0.41609	0.41609	53.59	0.0002
Error	7	0.01867	0.00267			0.01932	0.00276			0.05435	0.00776
Lack-of-Fit	3	0.01109	0.0037	1.95	0.2635	0.0128	0.00427	2.62	0.1878	0.04683	0.01561	8.3	0.0342
Pure Error	4	0.00758	0.00189			0.00652	0.00163			0.00752	0.00188
Total	12	3.2451				2.34139				8.51351
R ²		0.9942				0.9917				0.9936
Adj R²		0.9901				0.9859				0.9891
Pred R²		0.9692				0.9403				0.9604

¹ Sum of squares; DF: degree of freedom; MD: mean squares; *: multiplication. The term is significant at p ≤ 0.05. The term is significant at p ≤ 0.01. The term is significant at p ≤ 0.001.