What is a Kappa Test? Hint – it is not a test given to a college fraternity (i.e. Kappa Pi). A Kappa Test is an awesome statistical tool, an...

Short-term process capability studies are conducted to establish the performance entitlement of a process. This type of capability study cap...

Almost all natural data on planet earth is normally distributed and most manufacturing process data is normally distributed too. What does t...

Build a Histogram

Before diving into the normal distribution curve, let’s start with the building block of it, the histogram. The word hist...

In the kids’ movie Madagascar: Escape to Africa, Marty is the zoo zebra suddenly finds himself in a giant herd of zebras and he realizes tha...

If you work in manufacturing, you probably see data every day. You may see it so often that you’ve become numb to it. For example, how often...

In 1907, Mark Twain associated statistics with lies. I’m here to debunk Mark Twain’s debunking of statistics. Statistics in the hands of und...