The Performance of Modified Progressive Mean Control Chart with different constant value.

Abstract

Any manufacturing process cannot produce exactly identical items. In all kinds of processes, a certain amount of variability is present, which causes such kind of variations in the products. A modified progressive mean (MPM) control chart has recently been proposed plotting the statistic which uses the present data as well as the past data. We used the modified progressive mean (MPM) control chart with a different value of constant K_0. The results showed an improved performance of the proposed chart for smaller, moderated and larger shifts in terms of power.