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

Table 9

ARLs for proposed repetitive EWMA-RSS control chart using Khan et al. [8] exponential ratio-type estimator, when is 500.

shift	= 3.0958, = 2.339, λ = 0.3
f	= 0.25	= 0.50	= 0.90
0	500.62	500.62	500.62
0.01	465.88	458.08	338.43
0.02	376.84	356.15	154.65
0.03	281.12	253.98	68.99
0.04	201.98	175.04	32.43
0.05	143.42	119.84	16.22
0.10	28.42	20.91	1.60
0.15	7.38	5.15	1.02
0.20	2.67	1.97	1.00
0.25	1.45	1.22	1.00
0.30	1.11	1.04	1.00
0.35	1.02	1.01	1.00
0.40	1.00	1.00	1.00
0.5	1.00	1.00	1.00