... index C_pm for two processes. Process capability indices constitute one of the most broadly used tools of statistical process control. They have been introduced in order to measure whether a production process is capable of producing according to some specifications, which...

...Bahram Sadeghpour Gildeh; Sedigheh Rahimpour; Fatemeh Ghanbarpour Gravi Purpose The purpose of this paper is to construct a statistical hypotheses test for process capability indices and compare the pairs of them with a fixed sample size. Design/methodology/approach Since the sampling...

...Soroush Avakh Darestani; Mina Nasiri Purpose – In this context, process capability indices (PCI) reveal the process zones base on specification limits (SLs). Most of the research on control charts assumed certain data. However, to measure quality characteristic, practitioners sometimes face...

... as a surrogate measure of robustness. In each experimental run, the values of responses and the corresponding multivariate process capability indices across the outer array are determined. The variation of process performance (process capability values) due to random noise variation is studied using a general...