All Shewhart charts have the following characteristics: Each point represents a summary statistic computed from a sample of measurements of a quality characteristic. For example, the summary statistic ...

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 ...

In statistical process control, a state of statistical control is identified with a process generating independent and identically distributed random variables. It is often difficult in practice to ...