Chi2 test - easily explained with an example

What is a Chi2 test? And how is the Chi-Square test calculated? That's what we will discuss in this video.

The Chi-Square test is a hypothesis test that is used when you want to determine if there is a relationship between, two categorical variables.

But how do we calculate the Chi2 test?

There are two ways we can calculate the Chi2 test:
Either we use a statistical software like DATAtab or we calculate the Chi2 test by hand.

► Load example data set for the Chi2 test:

► Tutorial Chi2 test:

► Table of Chi-squared distribution

► EBOOK

00:10 What is a Chi2 test?
01:16 Examples for Chi2 test
02:18 How to calculate a Chi-Square test?
04:21 Calculate a Chi-Square test online with DATAtab
06:55 Formulas for the Chi2 test.

[ahmedabdeltawab]

I like to see you ♥️♥️
Because i get A+ in this course in my university thanks to you 😘❤

[md.nomanalimran]

i think when we are using categorical variable, in hypothesis building we do not use the term relationship we use association, and when we are using quantitative variable we use relationship.

[diogomendonca]

Awesome video. Thank you for sharing this knowledge

[danielyesiduribe]

Hello, what technique could I use when I have numerical independent variables and categorical target variable?

[olarcharles]

I missed how you got expected values by hand

[nikeforo]

Thank you for the video. I have tried to use your same easy-to-follow 'style' in my book 'From Data to Insights: A Beginner's Guide to Cross-Tabulation Analysis' which will be published in July (2024) with Routledge. Perhaps it might interest you. Regards.

[Jenave]

How did you get the expected frequencies?

[shagufta]

Could you show some examples in python or juypter book

[chandrasarkar]

why 0.05 is taken as significance value?

[Gunnuu]

Do you know what are the procedural guidelines of research methodology?
If yes pls reply my exam is on Tuesday.