What is the purpose of hypothesis testing and how do researchers use it? This is

What is the purpose of hypothesis testing and how do researchers use it?
This is a nursing research course. Please use peer-reviewed sources from 2020 until the present. Also, include this book source (PowerPoint) by Polit, D. F., & Beck, C. T. (2022). Essentials of nursing research: Appraising evidence for nursing practice (10th ed.). Wolters Kluwer. – Chapters 13 and 14.