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 ...

Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 41, No. 1 (1992), pp. 147-158 (12 pages) Acceptance control charts establish control limits based on specification limits ...

Control charts have been widely used for monitoring production processes and identifying assignable causes of variability. Many papers investigate the application of control charts in different ...