Article ID: | iaor201112599 |
Volume: | 27 |
Issue: | 3 |
Start Page Number: | 269 |
End Page Number: | 280 |
Publication Date: | Apr 2011 |
Journal: | Quality and Reliability Engineering International |
Authors: | Chen Huifen, Pao Yikung |
Keywords: | quality & reliability |
We consider the joint economic-statistical design of X and R control charts under the assumption that the quality measurement and the in-control time have Johnson and Weibull distributions. The Johnson distribution is general in that it can be made to fit all possible values of skewness and kurtosis. The four parameters–the sample size n, time h between successive samples, and the control factors k