Improved Nonparametric Control Chart Based on Ranked Set Sampling with Application of Chemical Data Modelling

Table 2

RL characteristic of the control chart under different distributions with and .

Distr.		Metric
			0	0.025	0.03	0.05	0.075	0.1	0.15	0.2	0.25	0.5	0.75	1	1.5	2
Normal	0.05, 2.081	ARL	500.04	284.02	239.41	127.00	69.34	43.71	23.02	14.10	9.68	2.93	1.57	1.16	1.00	1.00
t(4)	0.05, 2.08	ARL	498.01	287.13	241.49	127.40	69.35	43.26	22.62	14.13	9.71	2.91	1.55	1.14	1.02	1.00
CN	0.05, 3.204	ARL	498.11	390.49	359.60	240.51	146.55	96.54	51.03	32.07	22.33	6.90	3.39	2.09	1.22	1.01
Laplace	0.05, 2.083	ARL	498.67	287.40	245.01	129.08	68.32	44.01	22.48	14.10	9.73	2.91	1.57	1.16	1.01	1.00
Logistic	0.05, 2.083	ARL	503.92	287.07	241.11	129.30	69.45	44.14	22.61	14.01	9.59	2.93	1.56	1.14	1.01	1.00