2 types of variation and how we distinguish between common and special cause variation, along with how to create a rational subgroup. We also cover the equations and constants for the X-bar and R ...

In an attempt to improve the procedures for statistical process control many researchers have developed and proposed a variety of adaptive control charts in the last decade. The common characteristic ...

This is a preview. Log in through your library . Abstract The paper discusses the choice of sample size and of control limits for controlling the mean of a normal population in the most economical ...