Traditional attribute control charts are based on the monitoring of the number of nonconforming items in a sample of fixed size. In modern manufacturing processes, since items can be checked automatically, use of samples of a fixed subjective size with traditional charts is not suitable for...

Control charts based on geometric distribution have shown to be useful when this is a better approximation of the underlying distribution than the Poisson distribution. The traditional c ‐chart, if used, will cause too many false alarms. It is noted that for geometric distribution, the control...

When objective decisions are to be made, statistical methods should be used based on any objective information in the form of data collected about a product or process. Statistical techniques such as control charts, process capability indices and design of experiments have been used in the...

The attainment of superior quality and reliability in a manufactured product depends upon the existence of a framework integrating an organization’s capabilities in management, technology and information utilization. With respect to information utilization, statistical tools are particularly...