An alternative to the V-mask cusum chart is the one-sided cusum chart with a decision interval, which is sometimes referred to as the "computational form of the cusum chart." This example illustrates ...

Although cusum charts and Shewhart charts are both used to detect shifts in the process mean, there are important differences in the two methods. Each point on a Shewhart chart is based on information ...

International Journal for Quality in Health Care, Vol. 14, No. 3 (June 2002), pp. 251-258 (8 pages) Background. Quality assurance of medical practice requires assessment of doctors' performance, ...