Tips and Techniques for Statistics and Quality Improvement

Blog posts and articles about using Minitab software in quality improvement projects, research, and more.

Cody Steele

My love for statistics isn’t very common. Even in my own family, the idea of statistics brought frowns to people’s faces. But you don’t have to live in fear of statistics!
Cody Steele

For one reason or another, the response variable in a regression analysis might not satisfy one or more of the assumptions of ordinary least squares regression. The residuals might follow a skewed distribution or the residuals might curve as the predictions increase. A common solution when problems arise with the assumptions of ordinary least squares regression is to transform the response variable so that the data do...

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Did you know about the Minitab Network group on LinkedIn? It’s the one managed by Eston Martz, who also edits the Minitab blog. I like to see what the members are talking about, which recently got me into some discussions about Raman spectroscopy data.

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When I started out on the blog, I spent some time showing some data sets that would be easy to illustrate statistical concepts. It’s easier to show someone how something works with something familiar than with something they’ve never thought about before.

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It’s been almost 5 years since I used a quotation from Ghostbusters to introduce one of my early blog posts. But as we’re getting a few bits of entertainment news about the next installment in the Ghostbusters franchise, I thought it might be a good time to talk about busting ghosts in Minitab.

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When someone gives you data to analyze, you can gauge how your life is going by what you've received. Get a Minitab file, or even comma-separated values, and everything feels fine. Get a PDF file, and you start to think maybe you’re cursed because of your no-good-dirty-rotten-pig-stealing-great-great-grandfather and wish that you were someone else. For those of you who might be in such dire straits today, here are 3...

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If you’ve checked out What’s New in Minitab 17, you’ve had the chance to see that Conditional Formatting leads the list. If you’ve been reading the Minitab blog, you’ve had the chance to see demonstrations with Marvel’s Avengers and the Human Development Index. But you might not have had a chance to see that you can highlight large standardized residuals from a regression model and that the highlighted cells will...

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Minitab 17.2 is available. You can check out all of the new stuff on the What’s New Page, but I would say that a little demonstration is in order. Here are some new shortcuts that make arranging your data easier in Minitab 17.2.

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Sure, Minitab Statistical Software is powerful and easy to use, but did you know that it’s also magic? One of the illusions that Minitab can perform is the world famous disappearing-reappearing-analysis-settings act. Of course, as with many illusions, it’s not so hard once you know the trick. In this case, it’s downright easy once you know about Minitab project files.

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There’s a lot going on in the world, so you might not have noticed that the Organization for Economic Development (OECD) released their new set of health statistics for member nations. On the OECD website, you can now download the free data series for 2014. (Be aware that “for 2014” means that the organization has a pretty good idea about what happened in 2012.)

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Toolbars are there to make your life easier, but if you don’t take the time to hover over each button and wait for a description, it’s pretty easy to never know that there’s a faster way to do something.

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