Performance of control chart using generalised lambda distribution

Nandini Das

International Journal of Productivity and Quality Management, 2012, vol. 10, issue 4, 411-427

Abstract: Control chart is a well-known device for achieving statistical control in a process. Traditional control chart has been established based on the assumption of normality. In many practical situation assumption of normality is violated. Under these situations, the use of traditional control chart gives erroneous conclusion. For handling non-normal data one approach is use of non-parametric control charts which are not so efficient. Another approach is to use generalised distribution. In this work, we will show how generalised lambda can be used to handle non-normal data.

Keywords: generalised control charts; generalised lambda distribution; GLD; non-normal data; parameter estimation; quantile; statistical process control; SPC. (search for similar items in EconPapers)
Date: 2012
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