A new non-parametric CUSUM mean chart

A new non-parametric CUSUM mean chart

0.00 Avg rating0 Votes
Article ID: iaor201112654
Volume: 27
Issue: 7
Start Page Number: 867
End Page Number: 875
Publication Date: Nov 2011
Journal: Quality and Reliability Engineering International
Authors: ,
Keywords: cusum charts
Abstract:

Not all data in practice came from a process with normal distribution. When the process distribution is non-normal or unknown, the commonly used Shewhart control charts are not suitable. In this paper, a new non-parametric CUSUM Mean Chart is proposed to monitor the possible small mean shifts in the process. The sampling properties of the new monitoring statistics are examined and the average run lengths of the proposed chart are examined. Two numerical examples are used to illustrate the proposed chart and compare with the two existing charts, assuming normality and Beta distribution, respectively. The CUSUM Mean Chart showed better detection ability than those two charts in monitoring and detecting small process mean shifts.

Reviews

Required fields are marked *. Your email address will not be published.