These are typically captured using a control chart -- a statistical tool used in manufacturing or business to show the extent of the variation in a process.

Using statistical control charts to analyze data from student evaluations of teaching. Decision Sciences Journal of Innovative Education, 1 (2): 259-272. McSweeney, L. A. 2006. Monitoring paper ...

In an attempt to improve the procedures for statistical process control many researchers have developed and proposed a variety of adaptive control charts in the last decade. The common characteristic ...

Process inspection schemes using control charts with warning lines are considered and the properties for some schemes based on the observations from the last few samples are evaluated. Tables of ...

Excel is a powerful tool for managing projects, but there's one key feature it lacks: a built-in Gantt chart. This can be frustrating for project managers who rely on Gantt charts to visualize ...