Even the simplest processes turn to chaos if you're sloppy with your new product introduction....Here's a case study.
Here is my buy me a coffee link.
https://www.buymeacoffee.com/osId2T0BL

Design of Experiments for 21st Century Engineers – Minitab version https://www.lulu.com/en/gb/shop/paul-...

Drink tea and read the paper - https://www.lulu.com/en/us/shop/paul-...