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

Table 8

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 = 0.2
f	= 0.25	= 0.50	= 0.90
0	500.62	500.62	500.62
0.01	445.62	434.29	280.03
0.02	325.79	300.73	101.11
0.03	217.52	190.15	38.07
0.04	141.41	118.00	15.79
0.05	92.10	73.90	7.27
0.10	13.58	9.62	1.11
0.15	3.23	2.32	1.00
0.20	1.43	1.21	1.00
0.25	1.07	1.03	1.00
0.30	1.01	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