Performance of Synthetic Double Sampling Chart with Estimated Parameters Based on Expected Average Run Length

Table 2

Optimal charting parameters and the corresponding for with different combinations of when .

30	50	80	200	500
3	0.2	2	6	1.3830	5.2804	2.4572	68	247.22	168.88	136.75	110.56	101.56	96.01
	0.5	2	6	1.3830	5.2804	2.1867	18	16.68	13.35	12.03	10.99	10.63	10.41
	0.9	2	6	1.3830	5.2804	1.9945	8	2.83	2.72	2.67	2.62	2.60	2.59
	1.2	2	4	1.1503	5.0443	2.0178	4	1.64	1.62	1.60	1.59	1.58	1.58
	1.5	2	3	0.9674	4.9920	2.0523	3	1.24	1.23	1.23	1.22	1.22	1.22
	1.9	2	3	0.9674	4.9920	2.0523	3	1.06	1.06	1.06	1.05	1.05	1.05
4	0.2	3	8	1.5341	5.1956	2.3954	60	149.45	113.15	95.73	80.45	75.01	71.62
	0.5	3	8	1.5341	5.1956	2.0910	15	9.65	8.45	7.93	7.49	7.33	7.23
	0.9	3	6	1.3830	5.2804	2.0153	6	2.12	2.07	2.04	2.02	2.01	2.00
	1.2	3	4	1.1503	5.0443	2.0185	3	1.34	1.33	1.32	1.32	1.32	1.31
	1.5	3	3	0.9674	4.9920	2.0086	2	1.10	1.10	1.10	1.09	1.09	1.09
	1.9	3	3	0.9674	4.9920	2.0086	2	1.01	1.01	1.01	1.01	1.01	1.01
5	0.2	4	10	1.6449	5.1247	2.3394	55	108.31	84.83	73.06	62.63	58.92	56.60
	0.5	3	10	1.2816	5.1041	2.1216	12	6.64	6.05	5.78	5.54	5.46	5.40
	0.9	3	8	1.1503	5.0443	2.0186	5	1.73	1.71	1.69	1.68	1.68	1.67
	1.2	4	4	1.1503	5.0443	2.0615	3	1.20	1.19	1.19	1.18	1.18	1.18
	1.5	4	4	1.1503	5.0443	1.9647	2	1.05	1.04	1.04	1.04	1.04	1.04
	1.9	4	3	0.9674	4.9920	2.0363	2	1.00	1.00	1.00	1.00	1.00	1.00
6	0.2	4	12	1.3830	5.2804	2.3744	44	84.09	66.77	58.05	50.35	47.62	45.91
	0.5	4	12	1.3830	5.2804	2.0727	11	5.02	4.69	4.54	4.40	4.35	4.32
	0.9	4	8	1.1503	5.0443	2.0178	4	1.50	1.48	1.47	1.46	1.46	1.46
	1.2	5	5	1.2816	5.1041	2.0235	3	1.12	1.11	1.11	1.11	1.11	1.11
	1.5	5	4	1.1503	5.0443	1.9954	2	1.02	1.02	1.02	1.02	1.02	1.02
	1.9	5	3	0.9674	4.9920	2.0527	2	1.00	1.00	1.00	1.00	1.00	1.00