ISSN : 2005-0461(Print)
ISSN : 2287-7975(Online)
ISSN : 2287-7975(Online)
붓스트랩 방법을 이용한 로버스트 관리도
Robust Control Chart using Bootstrap Method
Abstract
Statistical process cintrol is intended to assist operators of a stable system in monitoring whether a change has occurred in the process, and it uses several control charts as main tools. In design and use of control chart, it is rational that probability of false alarm is minimized in stable process and probability of detecting shifts is maximized in out-of-control. In this study, we establish bootstrap control limits for robust M-estimator chart by applying the bootstrap method, called resampling, which could not demand assumptions about pre-distribution when the process is skewed and/or the normality assumption is doubt. The results obtained in this study are summarized as follows : bootstrap M-estimator control chart is developed for applying bootstrap method to M-estimator chart, which is more robust to keep ARL when process contain contaminate quality characteristic.
- SOGOBO_2003_v26n3_39.pdf635.5KB