Assessing process accuracy - an inferential method about the process accuracy index

被引:0
|
作者
Lin, Gu-Hong [1 ]
Wang, Lai-Wang [1 ]
Huang, Shihtao [1 ]
Lu, Lai-Chin [1 ]
Lai, Shun-Te [1 ]
机构
[1] Natl Kaohsiung Univ Appl Sci, Dept Ind Engn & Management, Kaohsiung 80742, Taiwan
来源
JOURNAL OF STATISTICS & MANAGEMENT SYSTEMS | 2007年 / 10卷 / 02期
关键词
Critical value; process accuracy index; process centering;
D O I
10.1080/09720510.2007.10701250
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
Process accuracy index C-a has been developed in the manufacturing industry to provide numerical measures on evaluating process centering. Distributional and inferential properties of the estimated accuracy index were investigated in the previous work. In this paper, a reliable hypotheses testing procedure on process centering for in-plant applications is constructed. Useful critical values to ensure the process reaching a certain desirable level of the time are tabulated. A practical example is also presented to illustrate how the proposed reliable procedure may be applied.
引用
收藏
页码:227 / 239
页数:13
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