Thanks to ASQ for asking me to write this article for their “Statistics Digest” newsletter in October of 2019 – click here to access the whole issue if you’re a member. I’m posting the article here with their permission. Readers of this newsletter most likely understand Statistical Process Control. When I teach workshops on the “Process Behavior Chart” method that I learned from Donald J. Wheeler, PhD, the classroom population is quite often evenly divided. … Continue reading Learning Process Behavior Charts and the More Difficult Challenge of Unlearning Old Lessons or Habits