Data Transformations and Minitab

Section 4 Process Capability

Lesson S04-08

Text: Section 4 pages 45

Duration: 19 minutes

A Non-Normal Minitab Example

After determining an appropriate distribution to model the nonnormal data, we just learned how to compute percentiles (in order to correctly estimate capability indices). Statistical software such as MINITAB simplifies the steps needed to estimate process capability of nonnormal data.

What else should we have done before doing the capability analysis?

A Minitab Transformation Example

Another Transformation Option

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About Steven Wachs

Steven Wachs has 25 years of wide-ranging industry experience in both technical and management positions. Steve has worked as a statistician at Ford Motor Company where he has extensive experience in the development of statistical models, reliability analysis, designed experimentation, and statistical process control.