The X-bar and R chart plots the sample mean (X-bar) and the sample range (R) of a process variable over time. It is suitable for small sample sizes (2 to 10) and stable processes.

Control charts have two general uses in an improvement project. Undeniably, the most common application is as a tool to ...

Control charts that display attribute data count the number of items or occurrences in a sample and assign as pass/fail, yes/no or presence/absence of a defect.

process-control-chart-examples Star Here is 1 public repository matching this topic... rashidmakki / process-control-charts-example Star 0. Code Issues Pull requests examples to solve p-chart, ...

Typically, control charts involve plotting sample statistics such as means, ranges, or proportions against predefined control limits. They help distinguish between common cause variation (inherent to ...

This article studies four T charts for sampling inspection: (1) a Shewhart T chart; (2) a CUSUM T chart and its variable sample size version; (3) a SA T chart (the T chart using sequential analysis); ...