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Statistical Estimation for Hazard Function and Process Capability Index under Bivariate Exponential Process
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 Title & Authors
Statistical Estimation for Hazard Function and Process Capability Index under Bivariate Exponential Process
Cho, Joong-Jae; Kang, Su-Mook; Park, Byoung-Sun;
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Higher sigma quality level is generally perceived by customers as improved performance by assigning a correspondingly higher satisfaction score. The process capability indices and the sigma level ave been widely used in six sigma industries to assess process performance. Most evaluations on process capability indices focus on statistical estimation under normal process which may result in unreliable assessments of process performance. In this paper, we consider statistical estimation for bivariate VPCI(Vector-valued Process Capability Index) $C_{pkl}
Vector-valued process capability index;bivariate exponential process;asymptotic confidence region;limiting distribution;
 Cited by
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