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Edexcel A-level Statistics Paper 2 - 10th June 2025 [Exam Chat]

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Reply 20

dontcare2

Oo what came up this year, 2 factor ANova where you had to do further analysis?

Reply 21

DylanPiii

Original post

by dontcare2

Oo what came up this year, 2 factor ANova where you had to do further analysis?

Whether a blocking factor was effective or not, yeah

Reply 22

AumAgra

Original post

by DylanPiii

Wilcoxon rank-sum cause I don't think it was paired? Wasn't clear at all I thought

Yeah rank sum for sure if it’s the top 10 it’s unlikely that it’ll be paired unless they’re the exact same people and also had the exact same rank

Reply 23

DylanPiii

Original post

by AumAgra

Yeah rank sum for sure if it’s the top 10 it’s unlikely that it’ll be paired unless they’re the exact same people and also had the exact same rank

What did you put for the 22/30 quality assurance one? I think it might have had to have been p=0.5 and p not=0.5

Reply 24

DylanPiii

Sorry, just seen your reply - that's smart

Reply 25

ccrrx

did anyone use the sign test for the one with matt and andy, i couldnt see what else to use

Reply 26

DylanPiii

Original post

by ccrrx

did anyone use the sign test for the one with matt and andy, i couldnt see what else to use

I thought about it but it didn't make sense in my head about what to do with the 8 as in what the critical region would be

Reply 27

ccrrx

Original post

by DylanPiii

I thought about it but it didn't make sense in my head about what to do with the 8 as in what the critical region would be

i did T(+) = 22 and T(-) = 8 so the ts was P(X<7) but no idea if thats right

Reply 28

DylanPiii

Original post

by AumAgra

I did a two sample test for proportion and had Andy’s proportion as 30/30 and matts as 22/30, reckon you could also do a one sample proportion test for matts and take it as P=1 too.

surely if you did that though, the two samples wouldn't be random?

Reply 29

ilxr

What’s the max marks I’ll get if I did paired signed rank ?

Reply 30

AumAgra

Original post

by DylanPiii

surely if you did that though, the two samples wouldn't be random?

I think it would surely be measuring 30 ‘random instances’ in terms of what the question was asking to be honest just couldn’t think of anything else relevant or accurate to do.

Reply 31

DylanPiii

Original post

by AumAgra

I think it would surely be measuring 30 ‘random instances’ in terms of what the question was asking to be honest just couldn’t think of anything else relevant or accurate to do.