TY - JFULL
AU - Y. Areepong
PY - 2013/9/
TI - Optimal Parameters of Double Moving Average Control Chart
T2 - International Journal of Mathematical and Computational Sciences
SP - 1282
EP - 1286
EM - yupaporna@ kmutnb.ac.th
VL - 7
SN - 1307-6892
UR - http://waset.org/publications/16091
PU - World Academy of Science, Engineering and Technology
NX - International Science Index 80, 2013
N2 - The objective of this paper is to present explicit analytical formulas for evaluating important characteristics of Double Moving Average control chart (DMA) for Poisson distribution. The most popular characteristics of a control chart are Average Run Length ( 0 ARL ) - the mean of observations that are taken before a system is signaled to be out-of control when it is actually still incontrol, and Average Delay time ( 1 ARL ) - mean delay of true alarm times. An important property required of 0 ARL is that it should be sufficiently large when the process is in-control to reduce a number of false alarms. On the other side, if the process is actually out-ofcontrol then 1 ARL should be as small as possible. In particular, the explicit analytical formulas for evaluating 0 ARL and 1 ARL be able to get a set of optimal parameters which depend on a width of the moving average ( w ) and width of control limit ( H ) for designing DMA chart with minimum of 1 ARL
ER -