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How to Maintain Historical Parameters in Minitab

What’s a Historical Parameter?

Historical Parameters are measurements that refer to baseline data. With Control Charts, these are often used in order to display the original center line along with the upper and lower Control Limits. The idea is to maintain these parameters until the process has been changed. Once an improvement has been made, the process can be tracked until it’s possible to calculate new parameters from the data.

Learn more about Maintaining Historical Parameters in Black Belt Training.

How to Maintain Historical Parameters in Minitab

1. Select Stat > Control Charts > Variables Charts for Individuals > I-MR Chart

2. Click on “I-MR Options

3. Select the “Parameters” tab

4. Enter the historical mean and Standard Deviation of the process:

MaintainHistoricalParameters-Minitab

To learn more about Maintaining Historical Parameters, register for Black Belt Training.

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