December 2022
Beginner to intermediate
370 pages
8h 50m
English
Content preview from CompTIA Data+: DAO-001 Certification Guide
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9
Hypothesis Testing
This chapter is all about the basic concepts behind hypothesis testing. Some data analyst positions will have little to no hypothesis testing, but this is really where data analysts shine. You receive a question, create a hypothesis, sometimes run a study, analyze data, and give a report that allows someone to make an informed decision. This process is the heart of data analytics, even if the majority of your time will be spent on more mundane tasks.
Here, we will discuss what hypothesis testing is and how it relates to the null hypothesis and the alternative hypothesis. Then, we will cover p-value and alpha and their role in hypothesis testing. Next, we will discuss type I and type II errors, how you can adjust them, and ...
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