October 2019
Beginner to intermediate
674 pages
16h 43m
English
Content preview from Mastering pandas - Second Edition
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chi-square test
In this section, we will learn how to implement a chi-square test from scratch in Python and run it on an example dataset.
A chi-square test is conducted to determine the statistical significance of a causal relationship of two categorical variables with each other.
For example, in the following dataset, a chi-square test can be used to determine whether color preferences affect a personality type (introvert and extrovert) or not, and vice versa:
The two hypotheses for chi-square tests are as follows:
- H0: Color preferences are not associated with a personality type
- Ha: Color preferences are associated with a personality type ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.