Analytically Speaking: Q&A with reliability expert Bill Meeker

Earlier this month, we had the pleasure of hosting Bill Meeker, Distinguished Professor of Liberal Arts and Sciences at Iowa State University, on our Analytically Speaking webcast series. Bill is a noted author and expert in the areas of reliability data analysis, reliability test planning, accelerated testing, nondestructive evaluation and […]

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Which Belgian beer tastes best? A designed experiment

During the The Scale-Up of Chemical Processes conference in Brussels earlier this year, the organizers and I decided to do an experiment using JMP. Of course, the experiment had to involve beer tasting! We had 24 participants for the experiment. We used eight Belgian beer brands for testing and planned […]

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A simple designed experiment with multimillion-dollar results

On Saturday (or Sept. 34), we marked the 25th birthday of JMP, a product I have been using since version 2. Until 2006, I was a JMP customer, even attending the first Discovery Summit conference for JMP users back in 1996. This birthday has made me nostalgic, and I wanted […]

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Design and Analysis of Experiments 2015 conference

A long, long time ago, I was a new statistics PhD student attending my first conference. To say I was intimidated is putting it mildly: Top researchers in experimental design and analysis from around the globe were scheduled to be at this conference. How would I be able to talk […]

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Why design of experiments keeps the science in science

In a recent discussion in the LinkedIn DOE group, I learned that some scientists resist the use of design of experiments because they believe that using DOE would be "taking the science out of science.” I believe this type of resistance comes from the minds of those who fear change. […]

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The eggciting results of my designed eggsperiment

In my previous blog entry, I talked about my frustrations in making good-looking hard-boiled eggs that were easy to peel. My Internet searches found a number of different techniques that cooks said were essential to success, but I wanted to know which techniques were best. So I set up a […]

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An eggciting designed eggsperiment

A typical scene in my kitchen: I make a batch of hard-boiled eggs with the hope of an easy peel and a beautifully cooked center. But when I sit down to enjoy my egg, I find that, sadly, it’s not so easy to peel – or I have discoloration around the […]

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Teaching with JMP, part 2

After writing the post on Teaching statistics with JMP last month, I didn’t think about a follow-on post since we had so many wonderful comments. But when we heard from Roger Hoerl at Union College about the thesis his student, Keilah Creedon, wrote (using JMP for the designed experiment part), […]

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Mmm cookies: a tale of discrete numeric variables, disallowed combinations and alias optimality

When I was in graduate school, one of my hobbies was to bake cookies for the department. For one of the basic chocolate chip cookie recipes, it wasn’t uncommon to switch the chocolate chips with another ingredient that was on sale that week (I was a grad student, after all). […]

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Alias Optimal versus D-optimal designs

In my previous blog entry, I discussed the purpose of the Alias Matrix in quantifying the potential bias in estimated effects due to the alias terms. In this blog post, we look at an example that creates a D-optimal design and an Alias Optimal design with the same number of […]

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