A-Level Maths: O1-07 Hypothesis Testing: PMCC Example 2

[logikali]

exam in an hour and a half might need to know this

[adamoneill]

Mocks tomorrow, thought i would just watch a few of these to solidify understanding. Really helpful thanks

[georgeloffhagen]

Thanks for the video. In this example would the spending be on the y axis and population growth be on the x axis? Thanks

[miriambell]

great video but somehow i still don't quite understand the wording(english is not my first language)
so when the result is in the critical region it is significant, therefor what the question asks might be true?
And is 'significant' similar to important in this case? As in important to have enough evidence?
thanks :)

[humayunrashid]

If I were to make the R value positive instead of the critical value negative, would we still get marks? Because that's how my teacher taught it to us

[edwinmathew]

is the null hypothesis always p is equal to 0

[chrisjohn]

how many marks would a question like this be worth?

[nightlifetheking]

Hey Jack, the sample size 48 isn't in the Edexcel formula sheet. Would I be correct to say they wouldn't give us n = 48, rather they can only give us what's on the formula sheet? There is n=40, n=50 in the formula sheet. Can we be asked to work out the probability for n=48 from n=40 & n=50 in some shape or form?

[JamesWilson-uiwg]

You said we won’t be given the critical value in the formula booklet for OCR MEI so will they tell it to us in the question or how do we work it out on the calculator?

[jacobmatthews]

Is there a difference between the product moment correlation coefficient and the population coefficient?

[breannat]

im not sure why the critical value changes to negative