Author/Authors :
Yew، S. Y. نويسنده School of Mathematical Sciences, Universiti Sains Malaysia , , Khoo، M. B. C. نويسنده School of Mathematical Sciences, Universiti Sains Malaysia , , Teoh، W. L نويسنده Department of Physical and Mathematical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Malaysia , , Teh، S. Y. نويسنده School of Management, Universiti Sains Malaysia , , Yeong، W. C. نويسنده Department of Physical and Mathematical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Malaysia ,
Abstract :
The Group Runs (GR) and Side Sensitive Group Runs (SSGR) control charts are the improvement of the
synthetic chart without and with side sensitivity. Both the SSGR and GR charts are effective for detecting
small to moderate process mean shifts. The performances of the SSGR and GR charts, in terms of the
average time to signal (ATS), are compared in this paper. In this comparative study, the Monte Carlo
simulation approach by means of the Statistical Analysis System (SAS) software is used to compute
the ATS values for the GR and SSGR charts. The results revealed that the SSGR chart’s performance is
better than that of the GR chart for all levels of mean shifts.
