A Simple Approach for Monitoring Business Service Time Variation

Table 9

The ARL₁ of the EWMA-AM and EWMA-AV charts for 𝜆₁=𝜆₂=0.05 and 𝑝_𝑚0=𝑝_𝑣0=0.1.

𝑛1	0.5𝑛2	𝑝𝑣1=0.1; 𝑝𝑚1			𝑝𝑣1=0.3; 𝑝𝑚1			𝑝𝑣1=0.7; 𝑝𝑚1
		0.1	0.3	0.7	0.1	0.3	0.7	0.1	0.3	0.7
10	5	186.4	4.8	1.9	7.0	2.9	1.5	2.4	1.6	1.1
12	6	186.1	4.3	1.8	6.3	2.6	1.4	2.3	1.5	1.0
14	7	185.5	4.1	1.6	5.8	2.4	1.2	2.0	1.3	0.9
16	8	185.0	3.8	1.6	5.4	2.2	1.2	2.0	1.3	0.9
18	9	185.0	3.7	1.3	5.1	2.2	1.0	2.0	1.3	0.8
20	10	184.8	3.5	1.2	4.8	2.0	1.0	1.9	1.2	0.7
22	11	185.5	3.3	1.2	4.5	1.9	1.0	1.9	1.2	0.7
24	12	185.1	3.1	1.2	4.3	1.8	0.9	1.8	1.1	0.7
26	13	185.0	3.0	1.1	4.2	1.8	0.9	1.6	1.0	0.7
28	14	185.4	2.9	1.0	4.1	1.7	0.8	1.6	1.0	0.6
30	15	185.3	2.9	1.0	4.0	1.7	0.8	1.5	1.0	0.6