So did I, but I still got that the test statistic wasn't significant. And if a lot of people used wilcoxon the final mark scheme may accommodate that with us getting like 6//7 out of the 11 marks

Reply 12

releaseskate

also what do ppl think the grade boundaries for an A* will be?

Reply 13

Adelle376473

Original post by releaseskate

also what do ppl think the grade boundaries for an A* will be?

105-110? What do u think

Reply 14

erenyeagers

Original post by yacob_123

pretty sure t-test, the data was normal

whattt really 😭😭 if u look at q8 from the 2019 paper it was a very similar question and wilcoxon was used because the p value was low and the data was not roughly linear if i’m not wrong

(edited 10 months ago)

Reply 15

ErenGreen

can someone explain why it was t-test for that 10 marker, to be sure? thanks

Reply 16

ErenGreen

Original post by erenyeagers

whattt really 😭😭 if u look at q8 from the 2019 paper it was a very similar question and wilcoxon was used because the p value was low and the data was not roughly linear if i’m not wrong

(edited 10 months ago)

Reply 17

releaseskate

Original post by erenyeagers

whattt really 😭😭 if u look at q8 from the 2019 paper it was a very similar question and wilcoxon was used because the p value was low and the data was not roughly linear if i’m not wrong

This was exactly my train of thought during the exam. The data was ambiguous whether it was linear or not, and the p value of like 0.235 was low. I hope they realise ppl could’ve gone either way for that question

(edited 10 months ago)

Reply 18

erenyeagers

Original post by ErenGreen

the sketch on this year's paper was MUCH straighter than the 2019 sketch/plot - it's from a sample so you can't expect it to be perfectly straight. Also, the p-value was 0.24 this year compared to 0.04 in 2019 (that is what I am going to tell myself though - i could be wrong)

valid - but i wouldn’t say it was MUCH straighter tbh & i don’t mean to sound stupid rn but i wouldn’t think a t test would be worth so many marks 😭😭 hopefully we’d get at least a few marks for either test though because i think it was pretty difficult to pick between the two with what they gave us