I'm so glad! I know that independence testing (well, all of the hypothesis testing) can be quite difficult when you first learn them. Good luck with the studies! :)
Thank you! I have a question, what if the table is only 1 way? The calculator says that there are not enough values but ive come across quite a few 1 way table questions
On exams, if you need to do a chi-squared independence test, you'll be given a table, yes. So that's not something you need to worry about :) Cheers, Mitch
Which calculator were you using? Because they all have slightly different ways of operating. One thing that's common though is that you need to put in the observed frequencies into your calculator as a matrix (be sure all rows and columns have entries and that none are blank - that's where the problem might have been for you, given the domain issue). Then ask your calculator for the Chi-squared analysis - depends if you want the independence test or goodness of fit (GOF)
![Chi-squared GOF (Goodness of Fit) test [IB Maths AI SL/HL]](http://i.ytimg.com/vi/9iWGC7I8JD0/mqdefault.jpg)
![Chi-squared GOF (Goodness of Fit) test [IB Maths AI SL/HL]](/img/tr.png)
Sitting finals tomorrow, your videos have been so helpful. Thank you!!
You're very welcome. Good luck on the exams - you've got this! -Mitch
AI HL P3 ND P2 TODAY! CRAZY VIDEOS, HELPED ALOT!!
Good luck on the exam! :)
Thank you! But I didn't understand quite well what is the critical value.
its the value that the chi-squared is compared to to see if you have to not reject Ho or reject Ho.
5:51 the joke was so funny and so cute such a nice touch to a very helpful video
I love that joke, too! :)
thank you, this was very very very very very helpful sir
I'm so glad! I know that independence testing (well, all of the hypothesis testing) can be quite difficult when you first learn them. Good luck with the studies! :)
Do we need to combine the expected values to get it to more than 5?
amazing video
Thanks! Glad you feel that way - Cheers, Mitch
Thank you! I have a question, what if the table is only 1 way? The calculator says that there are not enough values but ive come across quite a few 1 way table questions
On exams, if you need to do a chi-squared independence test, you'll be given a table, yes. So that's not something you need to worry about :) Cheers, Mitch
@@OSC1990 Okay that sounds good. Thank you very much!😀
it tells me that the argument must be in a specific domain
what does that mean?
Which calculator were you using? Because they all have slightly different ways of operating. One thing that's common though is that you need to put in the observed frequencies into your calculator as a matrix (be sure all rows and columns have entries and that none are blank - that's where the problem might have been for you, given the domain issue). Then ask your calculator for the Chi-squared analysis - depends if you want the independence test or goodness of fit (GOF)
Thank you so much very helpful video 🙌🏿🙏🏿🙏🏿
You are very welcome!
You're the best.
You're not so bad yourself! :)