Variable control charts based on Exponential-Gamma distributions


The well known variable control charts for mean and range of subgroups for a skewed distributions , Exponetial-Gamma are constructed by two different approaches. One from the first principles of using the percentiles of sampling distribution of sample mean and sample range and the other is based on the popular Shewart control limits. The coverage probabilities in both the approaches are computed through simulation and compared.

DOI Code: 10.1285/i20705948v8n1p57

Keywords: most probable, percetiles, equi-tailed, EGD, pdf,cdf

Full Text: pdf

Creative Commons License
This work is licensed under a Creative Commons Attribuzione - Non commerciale - Non opere derivate 3.0 Italia License.