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The Effect of Measurement Errors on the Synthetic x ̄ Chart
Author(s) -
Hu XueLong,
Castagliola Philippe,
Sun Jinsheng,
Khoo Michael B.C.
Publication year - 2015
Publication title -
quality and reliability engineering international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 62
eISSN - 1099-1638
pISSN - 0748-8017
DOI - 10.1002/qre.1716
Subject(s) - chart , covariate , observational error , control chart , computer science , shewhart individuals control chart , statistics , reliability engineering , synthetic data , data mining , algorithm , mathematics , engineering , ewma chart , process (computing) , operating system
Measurement errors often exist in quality control applications. In this paper, the performance of the syntheticX ̄ chart is investigated when measurement errors exist using a linearly covariate error model. It is shown that the performance of the syntheticX ̄ chart is significantly affected in the presence of measurement errors. The effect of taking multiple measurements for each item in a subgroup on the performance of syntheticX ̄ chart is also investigated in this paper. An example is provided in order to illustrate the application of the syntheticX ̄ chart with measurement errors. Copyright © 2014 John Wiley & Sons, Ltd.