One would think that a chemical engineer would be pretty adept at technical things. And one with a PhD even more so.
But, it seems that the confusion sowed by statistics knows no bounds. A PhD in chemical engineering recently told me,
"I never did get the hang of statistics."
Andrew A. (Andy) Jawlik is the author of the book, Statistics from A to Z -- Confusing Concepts Clarified, published by Wiley.