Reference : On the properties of the hotelling’s T2 control chart with variable sampling intervals
Scientific journals : Article
Business & economic sciences : Quantitative methods in economics & management
On the properties of the hotelling’s T2 control chart with variable sampling intervals
Faraz, Alireza mailto [Université de Liège - ULiège > HEC-Ecole de gestion : UER > Statistique appliquée à la gestion et à l'économie >]
Chalaki, Kamyar mailto [Islamic Azad University–Urmia Branch, Urmia, Iran > School of Mathematical Science, > > >]
Moghadam, M. B. mailto [Allameh Tabatabaee University, Tehran, Iran > Department of Statistics, Faculty of Economic, > > >]
Quality and Quantity
Springer Science & Business Media B.V.
Yes (verified by ORBi)
[en] Hotelling’s T 2 control chart ; Markoc chain ; Adjusted average time to signal (AATS)
[en] When T 2 control chart is used to monitor a process, it is usually assumed that
the samples of size n0 is taken at constant intervals t0 . In this paper, we investigate the
T 2 control chart for monitoring the process mean vector when the sampling intervals are
variable. Recent studies have shown that the variable sampling interval (VSI) scheme helps
practitioners detect process shifts more quickly than the classical scheme Fixed Ratio Sampling
(FRS). In this paper, it is assumed that the length of time the process remains in control
is exponentially distributed.
Islamic Azad university of Masjed-Soleiman, Khuzestan, Iran
Researchers ; Professionals ; Students

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