[Retracted] Optimizing the Parameters of Zirconium Carbide and Rice Husk Ash Reinforced with AA 2618 Composites

Table 8

ANOVA for material removal rate.

Source	SS	Degrees of freedom	Mean square	F value	value prob > F
Model	10329.27	14	10329.27	1422.41	<0.0001
A	2.19	1	2.19	4.22	0.0628
B	156.53	1	156.53	299.70	<0.0001
C	4938.68	1	4938.68	9329.50	<0.0002
D	4898.29	1	4898.29	9435.23	<0.0002
AB	0.064	1	0.064	0.3	0.7347
AC	0.050	1	0.050	0.078	0.7962
AD	0.013	1	0.013	0.024	0.8813
BC	15.99	1	15.99	29.86	0.0003
BD	11.38	1	11.38	20.98	0.0009
CD	405.01	1	405.01	781.29	<0.0002
A^2	5.97	1	4.97	8.56	0.0095
B^2	5.09	1	4.09	8.86	0.0162
C^2	0.79	1	0.79	1.50	0.2458
D^2	0.28	1	0.28	0.56	0.4730
Residual	7.24	12	0.53
Lack of fit	5.59	10	0.47	0.61	0.7846
Error	1.66	2	0.83
Total	10345.60	26