A New Statistical Approach Based on the Access of Electricity Application with Some Modified Control Charts

Table 4

Comparison of the and when by using the EWMA control charts with .

Methods	Shifts	ARL	SDRL
MLE	0	370.21	361.8405	39	128	254	454.6	889.3
	2.5	43.8005	42.78773	5	16	31	54	101
	3.1	38.4295	38.852	4	14	27	46	87
	3.2	28.168	28.55776	3	10	20	33	63
	3.4	17.0265	16.57206	2	6	12	21	38
	3.6	10.8385	10.2469	1	4	8	13	24
	3.8	7.2875	6.797569	1	3	5	9	16
	4	5.1535	4.82012	1	2	4	6	11
	4.2	3.908	3.418242	1	2	3	5	8
	4.4	2.968	2.531834	1	1	2	3	6
	4.6	2.4395	1.964248	1	1	2	3	5
MMLE	0	370.873	346.3069	39	135	270	450	857
	2.5	1.775	1.17135	1	1	1	2	3
	3.1	1.69	1.156533	1	1	1	2	3
	3.2	1.616	1.076161	1	1	1	2	3
	3.4	1.45	0.844901	1	1	1	2	2
	3.6	1.3195	0.666815	1	1	1	1	2
	3.8	1.2245	0.523676	1	1	1	1	2
	4	1.1655	0.445207	1	1	1	1	2
	4.2	1.1115	0.355149	1	1	1	1	1
	4.4	1.082	0.307121	1	1	1	1	1
	4.6	1.0555	0.249902	1	1	1	1	1