Table 3. Experimental values of serum total bilirubin (STB) before and after treatment with PH at various levels of independent variables as per design by CCD.

Standards	Experimental runs	Actual levels of variables				STB (mg/dl-1)
		ξ1: Dose of PH (mg/kg-1 bw)	ξ2: Total number of doses	ξ3: Dose interval (h)		Control	PH treated	Elevation
1	10	10	4	24		0.21	1.99	1.78
2	1	20	4	24		0.33	3.32	2.99
3	17	10	8	24		0.39	4.84	4.45
4	20	20	8	24		0.37	5.2	4.83
5	14	10	4	48		0.3	2.97	2.67
6	12	20	4	48		0.3	3.21	2.91
7	9	10	8	48		0.24	3.37	3.13
8	8	20	8	48		0.31	4.22	3.91
9	2	5	6	36		0.25	2.11	1.86
10	3	25	6	36		0.29	5.19	4.9
11	6	15	2	36		0.31	2.21	1.9
12	18	15	10	36		0.21	3.31	3.1
13	4	15	6	12		0.3	3.6	3.3
14	15	15	6	60		0.38	3.41	3.03
15	5	15	6	36		0.29	4.24	3.95
16	16	15	6	36		0.25	3.98	3.73
17	19	15	6	36		0.35	4.84	4.49
18	13	15	6	36		0.32	4.93	4.61
19	11	15	6	36		0.3	4.36	4.06
20	7	15	6	36		0.31	4.65	4.34