A-Level Maths: O1-06 Hypothesis Testing: PMCC Example 1

[samueljwilson]

Thanks for these videos, they are really helping with my A-levels, keep up the great work it really does help a lot of people out

[harryccfc]

you will defo save me from my A-levals

[renfoley]

hi Jack, just a quick question - is it required to state if the test is one or two-tailed? and also the significance level too. thanks in advance, love the videos

[joshplayz]

I understand how the Binomial values are calculated but does anyone know how the values for the PMCC are calculated in the tables? Or were they just designed at random?

[rossbeesley]

Hi, thanks for the video but I'm a tad confused because this contradicts what I've learned already. In an example solution, the correlation coefficient was given as 0.00218, and the significance level was 5% (so 2.5% because it was a two-tailed test). The solution said because 0.00218<0.025, there is significant evidence to reject the null hypothesis. Any ideas why the solution said this? Thanks

[kthulubean]

are all these videos still relevant to the edexcel 2020 curriculum??

[Theunmastered]

my teacher says the critical value is the opposite of what you said
can you explain

[hannahelias]

If we are given the critical value, is there no other use for n ?

[shamsalih]

I’m currently doing a question where its asking a coin is tossed 20 times and they are recording the number of heads received and the person suspects he is getting more heads than tails.. With a 5% significance Level they asked us to find H the Humber of heads received. How would you go about doing this? They suysoect it is unfair if more heads is received.