Stranger than fiction

Chapter 6-Testing for what?, of "Stranger than fiction" book by N.B. Austin
https://www.amazon.com.au/Stranger-than-Fiction-Corruption-Humanity/dp/1946990086/ref=sr_1_39?crid=1A1QD83AJRE7P&keywords=stranger+than+fiction&qid=1698417673&sprefix=stranger+than+%2Caps%2C326&sr=8-39
One of reviews from Amazon
"As a biostatistician the implications of this book hit rather close to home. There are a lot of rigorous statistics, but is written in a down to earth manner with depth for those that can appreciate it. N.B. Austin has the amazing gift of being able to explain abstract concepts in plain language making the knowledge contained in his book accessible to as many people as possible. The writing is excellent and even gut wrenching at times. I would go as far as saying this would be the definitive book I would recommend years from now for those wondering what happened."