A unification and some corrections to Markov chain approaches to develop variable ratio sampling scheme control charts

摘要

We provide some unifying definitions, make some corrections to articles by Faraz and Parsian (J Stat Pap 47:569-593, 2006) and Costa (JQual Technol 26:155-163, 1994; 29:197-204, 1997), and using these provide more accurate tables of results and comparisons of control charts. We also investigate the impact of an incorrectly specified process shift on signal frequency.