00153 ¿bcd5ddcd8a6a6f474478d1caafd0c2

154

Simpson & Keats

Table 15. Control Chart Design Statistics for X and CUSUM Economic Models (LV example)

Chart Typa	Shift	Maan	Median	Standard Deviation
Reference Value
CUSUM	Smali	0.5	0.5	0.2
CUSUM	Large	0.8	0.9	0.2
Decision lnterval
CUSUM	Smali	5.1	5.0	1.1
CUSUM	Large	3.6	3.5	0.8
Control Limit
Shewhart	Smali	1.9	2.2	0.7
Shewhart	Large	2.7	2.8	0.2
Sampling lnterval
CUSUM	Smali	0.3	0.2	0.1
Shewhart	Large	1.7	1.3	1.1
CUSUM	Large	0.3	0.3	0.1
Shewhart	Large	0.9	0.8	0.4
Sampłe Size
CUSUM	Smali	1.9	2.0	0.9
Shewhart	Smali	5.5	5.0	3.0
CUSUM	Large	1.1	1.0	0.3
Shewhart	Large	2.9	3.0	1.2
ARLO
CUSUM	Smali	492.2	189.0	559.1
Shewhart	Smali	54.4	36.0	58.5
CUSUM	Large	1070.7	976.4	770.5
Shewhart	Large	183.5	195.7	103.8
ARL 5
CUSUM	Smali	16.6	12.5	10.3
Shewhart	Smali	3.1	2.6	1.5
CUSUM	Large	5.0	3.5	2.3
Shewhart	Large	2.0	1.7	0.7