A Control Chart for Exponentially Distributed Characteristics Using Modified Multiple Dependent State Sampling

Table 11

The ARL comparison of the proposed chart with GMDS at  = 370.

	MMDS	GMDS	MMDS	GMDS	MMDS	GMDS	MMDS	GMDS
	4		5		6		7
	—	2	—	3	—	4	—	4
	3.01155	2.8074	2.99841	2.894	3.06503	2.8527	3.10255	2.907
	1.80629	1.5739	1.87564	1.5902	1.90764	1.6918	1.94119	1.478
	ARL		ARL		ARL		ARL
1	369.99	370.00	369.99	370.00	370.00	370.00	370.00	369.99
0.90	224.24	228.37	220.17	226.03	220.93	223.11	220.41	222.88
0.80	122.95	130.15	118.60	126.51	118.42	123.35	117.28	122.81
0.70	62.79	70.29	59.66	66.50	58.87	64.09	57.70	63.35
0.60	30.74	36.62	28.88	33.48	28.10	31.90	27.27	31.19
0.50	14.83	18.62	13.88	16.44	13.36	15.49	12.90	14.94
0.40	7.28	9.35	6.86	8.04	6.59	7.53	6.39	7.15
0.30	3.77	4.71	3.63	4.04	3.53	3.81	3.48	3.57