Table 3.

Uniform design table U₁₂ (12⁴) and the results

Experiment no.	X1	X2	X3	X4	Y
1	3 (18)	1 (0.3)	3 (4.2)	4 (250)	1.86
2	12 (72)	3 (0.7)	3 (4.2)	2 (150)	2.58
3	8 (48)	1 (0.3)	2 (2.8)	2 (150)	2.08
4	7 (42)	5 (1.1)	1 (1.4)	4 (250)	4.26
5	1 (6)	2 (0.5)	4 (5.6)	1 (100)	2.19
6	9 (54)	4 (0.9)	4 (5.6)	4 (250)	3.10
7	11 (66)	2 (0.5)	1 (1.4)	3 (200)	2.43
8	4 (24)	4 (0.9)	1 (1.4)	1 (100)	1.65
9	2 (12)	5 (1.1)	4 (5.6)	2 (150)	2.32
10	10 (60)	6 (1.3)	2 (2.8)	1 (100)	2.95
11	5 (30)	6 (1.3)	3 (4.2)	3 (200)	2.29
12	6 (36)	3 (0.7)	2 (2.8)	3 (200)	1.23