A Comparison of Control Charts for Detecting Variance Shift in Phase Ⅰ

摘要：

In this article we will give two alterative control charts for detecting the shift in the variance of the process mean in Phase I.One is a CUSUM chart based on likelihood ratio statistics and the other is a Shewhart chart based on the F statistics which is the ratio of two sample variances,each divided by its population variance.The simulated results show that the proposed two control charts are,respectively,superior to their competitors in the detection of sustained shifts.

关键词： control charts CUSUM chart Shewhart chart population variance Detecting Variance Shift

作者: Yi Dait Changliang Zou Zhaojun Wang

作者单位: School of Mathematical Sciences Nankai University,Tianjin 300071,PR China School of Mathematical Sciences Nankai University,Tianjin 300071,PR China LPMC of China

会议类型: 国内会议

会议名称: 中国现场统计研究会第十二届学术年会

会议地点: 烟台

会议语种:英文

页码: 223-226

在线出版日期: 2005-07-28（万方平台首次上网日期，不代表论文的发表时间）