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How to Run an I & MR Chart in Minitab

What’s an I & MR Chart (aka X & MR or Chart)?

I & MR Charts are Control Charts designed for tracking single points of continuous data. They consist of two separate charts;  “I” stands for the “Individual” Chart which tracks the individual data points (or pre-summarized data) and “MR” stands for “Moving Range” Chart which tracks the absolute value of the distance between each pair of consecutive data points. These are considered the most flexible of the Control Charts and are often used to track business performance data.

A classic example of an I & MR Chart is to track daily total sales.

Learn more about I & MR Charts in Control Phase, Module 6.1.1 of Black Belt Training.

How to Create an I & MR Chart in Minitab

1. Select Raw Data:

I&MRChart-Minitab-RawData

2. Go to Stat > Control Charts > Variables Charts for Individuals > I & MR Chart

I&MRChart-Minitab-Variables

3. Click on the “I-MR Options…” Button

I&MRChart-Minitab-Settings

4. Click OK

5. Click OK again:

I&MRChart-Minitab-Chart

To learn more about I & MR Charts, register for Black Belt Training and review Control Phase, Module 6.1.1.

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