An asymptotic distribution for an estimate of the process yield index was considered. The asymptotic distribution of estimate was useful in statistical inferences for process yield index. Hypothesis testing and interval estimation on yield index were studied with the help of an example. The process satisfied the capability requirement yield index for its value greater than one. An approximate 95% confidence interval for yield index was found to be consistent with the hypothesis testing results.
- Central limit theorem
- Illustrative example
- Normal distribution
ASJC Scopus subject areas
- Safety, Risk, Reliability and Quality
- Management Science and Operations Research