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Data Analysis

Blog posts and articles with tips for analyzing data for quality improvement methodologies, including Six Sigma and Lean.

As I mentioned before, accurate instruments won’t yield good data if you haven’t answered three fundamental questions that should precede every measurement system analysis. Whether you're doing a 6 Sigma project, or data analysis in support of a research project or some other goal, you need to be careful about how, when and where you gather the data. Here’s how I learned that lesson the hard way.I... Continue Reading
Sometimes, statistical terms can seem like they were zapped down from outer space by sadistic, mealy-mouthed aliens: R-squared adjusted, heteroeskadasticity, 3-parameter Weibull distribution. But not all statistics terminology should leave you feeling woozy and glassy-eyed. Some terms  actually make intuitive sense. Knowing those terms can help you get a handle on output that may seem fuzzy at... Continue Reading

7 Deadly Statistical Sins Even the Experts Make

Do you know how to avoid them?

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