The central composition design matrix and experiment results.

Run	Independent variables			Responses
	X 1	X 2	X 3	Y 1	Y 2
1	1	−1	−1	19.84	11.84
2	0	0	−1.68	15.72	9.24
3	1	1	−1	18.40	10.74
4	0	0	0	12.96	7.57
5	0	0	0	13.07	7.67
6	0	0	0	15.38	8.93
7	1.68	0	0	16.96	9.69
8	0	0	1.68	14.00	8.05
9	0	−1.68	0	17.44	10.13
10	0	0	0	13.30	7.76
11	−1.68	0	0	9.11	5.34
12	−1	1	1	13.52	7.89
13	1	−1	1	14.69	8.41
14	0	0	0	15.32	8.91
15	−1	−1	−1	12.92	7.51
16	−1	1	−1	13.44	7.80
17	1	1	1	16.42	9.49
18	0	1.68	0	17.78	10.40
19	−1	−1	1	12.01	7.06
20	0	0	0	13.26	7.84