p^^--Rp 管理図における群内変動と群間変動の推定

概要

論文の詳細を見る
The usefulness of the control chart exists in utilizing it as a tool for a process analysis as well as for a process control. The process analysis based on the control chart can be characterized by the estimation of inter- and intra-subgroup variations.While the x^^--R chart has established the estimation, the conventional p or pn chart has not yet.The p^^--Rp chart proposed by Y. Akao clarifies the inter- and intra-subgroup variations of attribute and enables us to control them. Recently, the author reported its theoretical operating characterstics.In this paper, it is reported that if we resort to the p^^--Rp chart, we can estimate the two variations of attribute in a similar manner as is employed in the x^^--R chart.This implies that the p^^--Rp chart is also useful as a tool for a process analysis.
1984-07-15