Test of Independence Using Chi-Square Distribution

[@TheOrganicChemistryTutor]

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BEST EXPLANATION GBU

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[@sirjohntutorials9997]

please can you or someone explain why it's a right tail test or not. anyway it's a great job.

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Mans got jokes at the end lol

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this really helped thanks

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Thanks well done...

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Please I love your videos. Can you make videos on ANOVA ASAP?

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[@yashs1962]

I had a query @TheOrganicChemistryTutor how did you determine that rejection region will be to the right of critical value in this example.In other words,how did you determine which side of the graph is the fail to reject region since question doesn't specify it.

[@evenastyles3008]

This is great!

[@dailyworddigest4229]

HI, you are an awesome teacher. Please how did you arrive at 0.95 FOR THE DO NOT REJECT REGION ON THE GRAPH. I hope to hear from you soon. thanks

[@choolwesimafuta9361]

That's a probability distribution graph... The area bounded by it is 1 so because alpha is the area of the reject region which is 0.05. It follows that A(rr)+A(nrr)=1, A(nrr)=1-A(rr)=1-0.05=0.95

[@fahyen6557]

Good video

[@mikayyy7731]

Is the alpha always given?

[@wide_eyed_corpsebride]

thank you

[@nayzethperez2524]

How do you solve for expected frequency?

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Thanks a lot

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I am a medical student and we started to take the statistics in the third year , but our doctors are so damn bad in it , they don’t explain anything and we left confused all the time , I will have my final exam tomorrow , the idea is frightening. But I am one of the best students in this subject in the stage lol but that fair can’t get away unfortunately....

[@quingquing]

Thanks for this great video Organic Chem Tutor. The best comment Ive read below is :"I hope you are getting paid more than my three professors combined". I would have commented the same!. by the way may I know what program you are using to make the video?

[@explorer0082]

Why is it right tail critical region ?

[@Joooshey]

Can you please do effect size?

[@ObeyGoodness_20]

U are just too much as a genius...

[@AI-kr7mj]

I am confused on Null and alternative hypothesis? Will anyone help me to shutdown this confusion?

[@dianabarbara2948]

Null hypothesis for chi square test always states that the two variables are independent from one another

[@nokokgomo__lazzy]

ANOVA... Sir ,I bet you'll explain it better

[@bloodmachine3787]

Can anyone explain why it was a right tail test?

[@danishcode]

How can we came to know it will be right tail test or left tail test??

[@dianabarbara2948]

Always right tail here, the idea is that the bigger the chi square the further away you are from the expected values if the null hypothesis is true! So the bigger the chi square, the more certain you are that the variables are not independent

[@syamilmuhsin7]

Isnt the number of average hours of DEPENDENT on types of students supposed to be the Ho?

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[@misturahayoola259]

I dont understand why the null hypothesis is independent and the alternative is dependent can someone explain it to me please 🙏🏿

[@jesical94]

Which program do you apply to make the videos guys?

[@jesical94]

Waiting the answer 🥺

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I don’t know. As far as I know nobody knows. This is a question I see commonly, with no reply. He has a big taskbar around the area but he cuts that out of frame.

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Probably the same program that Sal Khan uses. I forgot the name, but you could look it up.

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You did not even tell us why you multiplied row and column and divided by total to find expected value.

[@eggsammich1186]

(row total)(column total)/ grand total is the formula for expected value

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Lol learned this in stats 2 weeks ago🧇

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Cool

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The end 💀💀💀💀

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[@warayupaygaming1296]

I really had a hard time understanding the difference between the 3 types of Chi Square Tests. 😩

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22 August 2024 , 28 min before my test , believe me im standing on business 🥹💃🏻