A New Generalized Range Control Chart for the Weibull Distribution

Table 5

The values of ARLs when and .

	,
	0.92,		,
	4.25		4.245
	ARL	SD	ARL	SD
1	372.81	366.44	368.06	365.01
0.99	332.58	329.81	334.46	331.46
0.98	303.79	306.22	307.32	305.61
0.95	230.89	229.60	225.06	223.30
0.92	166.86	168.52	169.12	164.21
0.9	137.81	138.77	134.44	136.91
0.85	83.46	81.42	83.10	81.47
0.8	52.10	50.96	52.71	52.80
0.75	32.85	32.67	32.67	32.51
0.7	23.11	24.92	21.06	19.98
0.65	13.65	12.36	14.18	16.64
0.6	8.89	9.63	8.92	7.88