stribution and what role does it play in hypothesis, explain why or why not and Why is it said that hypothesis testing invloves double negative logic?...

What is a comparison distribution and what role does it play in hypothesis, explain why or why not and Why is it said that hypothesis testing invloves double negative logic? Be specific please and if you didnt make it up yourself you have to cite it and include a reference please. Happy new year. Thanks for your dedication. I uploaded my statistics text book as well. Let me know asap if you can do this. thank you