Analysis of particle size (Y1) by using ANOVA.

Source	Sum of squares	df	Mean square	F value	p-Value prob > F
Model	38 950.74	9	4327.86	1.391 × 107	<0.0001	Significant
A-X1	374.26	1	374.26	1.203 × 106	<0.0001
B-X2	668.13	1	668.13	2.147 × 106	<0.0001
C-X3	353.77	1	353.77	1.137 × 106	<0.0001
AB	24.68	1	24.68	79 302.36	<0.0001
AC	118.81	1	118.81	3.818 × 105	<0.0001
BC	187.31	1	187.31	6.020 × 105	<0.0001
A 2	21 558.27	1	21 558.27	6.928 × 107	<0.0001
B 2	14 396.16	1	14 396.16	4.627 × 107	<0.0001
C 2	8130.23	1	8130.23	2.613 × 107	<0.0001
Residual	3.112 × 10−3	10	3.112 × 10−4
Lack of fit	7.782 × 10−4	5	1.556 × 10−4	0.33	0.8733	Not significant
Pure error	2.333 × 10−3	5
Cor total	38 950.75	19