Xbar, Rb, and S Charts

Section 6 Charts for Multiple Locations

Lesson S06-02

Text: Section 6 pages 8 – 13

Duration: 11 minutes

Introduction to X̄, Rb, and S Charts

Whenever the measurements in a sample come from the same distribution, and the sample to sample variation is much bigger than the within sample variation, Rb and S charts should be used.

An Example

Calculations for the X̄, Rb, and S Charts

Download the worksheet for your own use:

X̄, Rb, and S Charts Worksheet

Making Sense of the Calculations

X̄, Rb, and S Charts Minitab Example

An Example of Rational Sample Violation