Excellent presentation. Just to add that this and other statistical delights are all covered in A Level Further Maths (Further Stats options). I take my hat off to any school student doing this course, as it's first-year university level. I definitely didn't have the aptitude to do both Maths A Levels in just two years when I was in my late teens!
Hi, Calculator guide guru. Have a casio fx-CG50 and can't get find way to get into mode to take 1,000,000 to 1 x 10 power 6. Sorry to post here but only a few comments so hoped was spotted. Help most graciously accepted ;-0
There isn't a way to convert as such but you can set it to give your answer in science notation/standard form. If you press SHIFT, SET UP and scroll down to Display and change this to Sci. I usually choose 0 to give the most flexibility, but this will display insignificant zeros If you input 1000000 not you should get 1.000000000 x 10⁶. Don't worry about the zeros it is just the calculator's way of allowing as many significant figures as you need. So you just say to yourself this can be written as 1 x 10⁶ or even just 10⁶
Interesting problem! BTW I just got my fx-CG50 today. Out of curiosity, can we solve this problem without having to refer to the contingency table? i.e. by just using the calculator? Thank you.
I am not entirely sure what you mean. We inputted the data and the calculator worked out the chi-squared result for us, so I am not sure we can do it another way. We need evidence to say whether or not History and Maths scores are independent or not and the chi-squared test does that for us.
@@TheCalculatorGuide , thank you. I understand what you are tryin to do. Maybe I can re-phrase my question.. Can we have the contingency table built in the calculator so that we don't need to carry it around?
Wow! You are ace. I will do a video on this as soon as I can. Thanks for finding this. Even Casio's official video refers to the tables and not the calculator.
Excellent presentation.
Just to add that this and other statistical delights are all covered in A Level Further Maths (Further Stats options). I take my hat off to any school student doing this course, as it's first-year university level. I definitely didn't have the aptitude to do both Maths A Levels in just two years when I was in my late teens!
Thanks for another great presentation, very helpful.
is there a calculator which has the chi-square function but which is not programmable?
Thank you so much!
what do i do if my contingency table contains zeros
Is it possible to do a chi-square test with decimal values? because every time I try, it says that I need to only input integer values.
Please help
You can only input integer values as your "observed values"
Really helpful video
can't we just compare the p value it gives us to the significance level to accept the null immediately
as in the p value in this example = 0.1411 => prob. of these results being down to chance = 0.1411 and since 0.1411 > 0.05, we cant reject null
Hi, Calculator guide guru. Have a casio fx-CG50 and can't get find way to get into mode to take 1,000,000 to 1 x 10 power 6. Sorry to post here but only a few comments so hoped was spotted. Help most graciously accepted ;-0
There isn't a way to convert as such but you can set it to give your answer in science notation/standard form. If you press SHIFT, SET UP and scroll down to Display and change this to Sci. I usually choose 0 to give the most flexibility, but this will display insignificant zeros
If you input 1000000 not you should get 1.000000000 x 10⁶. Don't worry about the zeros it is just the calculator's way of allowing as many significant figures as you need. So you just say to yourself this can be written as 1 x 10⁶ or even just 10⁶
Interesting problem! BTW I just got my fx-CG50 today. Out of curiosity, can we solve this problem without having to refer to the contingency table? i.e. by just using the calculator? Thank you.
I am not entirely sure what you mean. We inputted the data and the calculator worked out the chi-squared result for us, so I am not sure we can do it another way. We need evidence to say whether or not History and Maths scores are independent or not and the chi-squared test does that for us.
@@TheCalculatorGuide , thank you. I understand what you are tryin to do. Maybe I can re-phrase my question.. Can we have the contingency table built in the calculator so that we don't need to carry it around?
Oh do you mean the x^2 table for the critical values then yes, thanks to another poster who has told me about it. Video soon!
@@TheCalculatorGuide , many thanks.. Looking forward to that.. Regards
4:55 - this is a very powerful calculator and can't to calculate critical values?!?
Not for Chi Squared, no. I am not sure if it may be a specific educational reason.
@@TheCalculatorGuide I'm sure it can - on my fx-9860GII: MENU 1 OPTN STAT DIST CHI InvChiCD(.05,4
The result is 9.4877.....
Wow! You are ace. I will do a video on this as soon as I can. Thanks for finding this. Even Casio's official video refers to the tables and not the calculator.
@@TheCalculatorGuide :D it was a quick search in the manual. BTW: really sad, they do not know the capabilities of their products...
amazing!!