Improvement of Physicochemical Characteristics of Monoepoxide Linoleic Acid Ring Opening for Biolubricant Base Oil

Table 4

Analysis of variance, showing the effect of the variables as linear, square and interactions on the response OOC% of HYOOA (𝑌) of the D-optimal design.

Source	Df	Sum of squares	Mean square	F value	P
Mean	1	85.75	85.75
Linear	4	19.89	4.97	5.76	0.0030
2FI	6	8.48	1.41	2.25	0.0987
Quadratic	4	4.28	1.07	2.38	0.1214
Lack-of-fit	10	4.50	0.45
Pure error	25	122.90	4.92