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Box-Whisker Chart

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Box-Whisker Chart

A Box Whisker Chart is a graphical tool that may be used with variables data (data that is both quantitative and continuous in measurement, such as a measured dimension or time). The Box Whisker chart may be used to:
  • Monitor the process location and variation over time.
  • Compare the location and variation of various processes or categories of products or services.
In any application, Box Whisker Charts are NOT control charts, as they do not have statistical control limits. For that reason, they may not be used to establish statistical control of a process or to measure process capability.

See also:

SPC Concepts

When to Use a Box Whisker Chart

Interpreting a Box Whisker Chart

Box Whisker Chart Calculations


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