Exponentially Weighted Moving Average Control Charts for the Process Mean Using Exponential Ratio Type Estimator

Table 4

ARLs for proposed repetitive EWMA-RSS control chart using Bahl and Tuteja (1991) exponential ratio-type estimator, when is 370.

shift	= 3.0025, = 2.6008, λ = 0.1
f	= 0.25	= 0.50	= 0.90
0	370.98	370.98	370.98
0.01	317.51	307.89	244.08
0.02	216.08	197.39	108.91
0.03	134.78	116.57	48.40
0.04	83.08	68.76	23.06
0.05	52.01	41.55	11.88
0.10	7.33	5.39	1.51
0.15	2.08	1.65	1.02
0.20	1.19	1.09	1.00
0.25	1.02	1.01	1.00
0.30	1.00	1.00	1.00
0.35	1.00	1.00	1.00
0.40	1.00	1.00	1.00
0.5	1.00	1.00	1.00