Chi Square Test

This statistics video tutorial provides a basic introduction into the chi square test. It explains how to use the chi square distribution to perform a goodness of fit test to determine whether or not to accept or reject the null hypothesis.

Confidence Intervals & Margin of Error:

Find The Z-Score Given Confidence Interval:

Student's T-Distribution:

Hypothesis Testing - Null & Alternative:

Type I and Type II Errors:

One Tailed and Two Tailed Tests:

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Test Static For Means & Pop Proportions:

Hypothesis Testing Problems:

P-Value Method - Hypothesis Testing:

Hypothesis Testing - Proportions:

Difference of 2 Means - H Testing:

Cohen's D - Pooled Standard Deviation:

Hypothesis Testing - 2 Proportions:

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Matched or Paired Samples t-Test:

Chi Square Test:

Chi Square Distribution Test:

Test of Independence - Chi Square Dist:

Final Exams and Video Playlists:

Full-Length Videos and Worksheets:

[Tecknicio]

you're getting me through my entire schooling career. In high school I used your videos and now in my third year of university I still find myself coming back to your videos for help. You're one of the best Instructors on the planet.

[hameddadgour]

Finally, someone was able to explain the chi square test in plain English...

[rachaelmc]

You are so good at teaching. You make everything so clear in such less time than other videos. Thank you so much!!!

[jarodchesser]

I'm in a research course in grad school and am barely staying afloat, mostly because the instructors and materials just throw a wall of jargon at us with, apparently, the expectation that learning these concepts would happen either magically or by osmosis or something.

It's like they're trying to teach us a foreign language by giving us books written in that language and then flunking us for not being able to do literary criticism in that language after a week. It's ridiculous. I've got multiple degrees, speak multiple languages, have worked around the world, but they act like we're dumb because instead of teaching, they just expect that what seems obvious to them will be obvious to everybody.

This one video is the only resource I've found that breaks it down to a level accessible to those not already part of the "in-group" of trained statisticians.

THANK YOU. Is it really that hard to just say, this is what it is, this is what it's for, and this is a quick look at how it works?

EVERY other resource I've found either gets lost in this self-referential loop of jargon being explained with jargon; or else it takes 3 hours to explain what could be said in 2 minutes.

I've subscribed and will probably spend my study hours here instead of with the useless course materials I was provided.

[dongab]

I never, or rarely comment on youtube videos of people teaching something, but I've been using a lot of your content to try to understand the basics of stats and probabilities, and your content is simply awesome. Really good explanations, voice is clear and friendly, you give the student the will to learn and it's really awesome. Keep it up ! Love from Paris

[snuffy]

You sir are a true Shahanshah! You taught me more in 5 minutes than my ap bio teacher did in 2 weeks !!!

[sunserv]

I NEVER comment on youtube videos, but this helped me so much, and I finally am beginning to understand what's happening! You are more appreciated than you could ever know.

[subhrajitbhowmik]

Grasped a concept in 6:43 mins, 18 mins before my exam, what my prof couldn't in 40 mins, God bless you mate!

[Godly-Warrior-SebKing]

A little bit of a nitpick, you said at one point "we accept the null hypothesis." I am not incredible at stats but I do know that you can NEVER accept the null, you can only reject or fail to reject it.

[AdrianM-kclu]

Another exam session and another marathon of your films. Thanks!

[TheScottDub]

I am taking Graduate Statistics right now through an online course and this gave me better insight than any material provided by the school so far. You also did it in a fraction of the time in comparison to other videos in a way that made sense. I'll be following for future videos. Thank you.

[hodgedylan]

F man, you make things so easy to understand. What a teaching ability!

[sprout]

to understand the basics of a concept that I knew absolutely nothing about in 6 minutes is amazing 😭tysm, i owe you my grades

[duaaalsulaiman]

this guy saved my ass every night before my exam since I was in middle school until now I am a senior :) thank you dude !

[RyanAlvinTekkerzplusLewis]

I love how you teach, you make everything so simple and easy to understand.

[sallysarkiss]

Your explanations are so much clearer than my units at university, thank you. Also, has anyone told you that you sound just like Mark Whalberg!

[alundeen]

This is such a helpful video! You spoke clearly and slow enough for me to be able to understand. Thank you so much!!

[hirushanmadoosha]

thank you so much you are literally the saviour of all the students
Imagine sleeping at night knowing that you are saving the lives of all the students around the world

[YouHaveNeverHerdOfMe]

Our teached assigned us four videos (each half an hour long) to explain everything you just did. Thank you

[stephenondieki]

What a nice way to teach statistics especially bisecting the technical terms to understandable form.