Outlier tests such as the W-ratio test and Dixon’s outlier test suffer from a problem that can mislead the user. This article will outline the problem and provide guidelines for the appropriate use of these tests.

'Pssst! Hey kid, ya wanna be a metrologist?"..."Uh, what's a metrologist?"... "Ya get paid to measure stuff."..."Sounds kinda boring." So it goes at colleges and universities all across the United States.

Albert Einstein once said, “If I were given one hour to save the planet, I would spend 59 minutes defining the problem and one minute resolving it.”

In the age of big data, visualization tools are vital. With a single glance at a graphic display, a human can recognize patterns that a computer might fail to find even after hours of analysis.