Control charts have two general uses in an improvement project. Undeniably, the most common application is as a tool to monitor process stability and control. A less common, although some might argue ...

Youíll learn how to select the right attribute data control chart, and how to create those control charts. These include the NP Chart, the P Chart, the U Chart and the C Chart. To do this you must ...

This is a preview. Log in through your library . Abstract A model is developed for production processes which have an in-control state and may jump to one of several out-of-control states in course of ...

An expected-cost model is developed for the np-control chart when curtailed sampling procedures are followed. The total expected cost consists of the cost of sampling, the cost of investigating and ...

The previous example illustrates how you can create np charts using raw data (counts of nonconforming items). However, in many applications, the data are provided in summarized form as proportions or ...

p expected proportion of nonconforming items produced by the process A lower probability limit for X i can be determined using the fact that Refer to Johnson, Kotz, and Kemp (1992). This assumes that ...