Table 7.

Analysis of variance of the CCD experiment for the calculated responses

Source	DF	Sum of square	Mean square	F value	P value
Regression	27	34.5096	1.2781	5.20	0.000
Linear	6	17.8470	3.8618	15.70	0.000
X2	1	4.1434	4.6555	18.93	0.000
XI	1	12.5198	16.5267	67.18	0.000
X4	1	0.8453	1.1134	4.53	0.043
X3	1	0.0012	0.1614	0.66	0.0426
X16	1	0.3172	0.3172	1.29	0.0267
X5	1	0.0201	0.0201	0.08	0.0777
Square	6	11.3852	1.8975	7.71	0.000
X2 * X2	1	1.7301	1.1215	4.56	0.043
XI * XI	1	7.0794	6.6214	26.92	0.000
X4 * X4	1	0.8781	0.9586	3.90	0.060
X3 * X3	1	0.4035	0.4353	1.77	0.195
X16 * X16	1	0.3667	0.4371	1.78	0.195
X5 * X5	1	0.9273	0.9273	3.77	0.064
Interaction	15	5.2775	0.3518	1.43	0.208
X2 * XI	1	1.5882	1.5882	6.46	0.018
X2 * X4	1	0.1187	0.1187	0.48	0.494
X2 * X3	1	0.3103	0.3103	1.26	0.272
X2 * X16	1	0.2982	0.2982	1.21	0.281
X2 * X5	1	0.2327	0.2327	0.95	0.340
XI * X4	1	0.0052	0.0052	0.02	0.885
XI * X3	1	0.5276	0.5276	2.14	0.156
XI * X16	1	0.0004	0.0004	0.00	0.969
XI * X5	1	0.0429	0.0429	0.17	0.680
X4 * X3	1	0.0034	0.0034	0.01	0.908
X4 * X16	1	0.8682	0.8682	3.53	0.072
X4 * X5	1	0.0891	0.0891	0.36	0.553
X3 * X16	1	0.7531	0.7531	3.06	0.092
X3 * X5	1	0.0003	0.0003	0.00	0.974
X16 * X5	1	0.4392	0.4392	1.79	0.194