The extent to which products meet specifications needs to be systematically monitored in a production process. Product quality will typically be defined by two quantities: deviations from stated ...

What methods are available to support the value to the investor of statistical analysis of stock price levels? One such method is the control chart, and this device has proven its worth in a variety ...

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 ...