I think this may be wrong on the mark scheme, my answer was 1.516x10^-10, did i do something wrong?

[neat ingot]

lemme try

I ain’t done stats in ages tho

This A level maths innit ?

,rotate

[dusk robin]

yh

i see u used the z values method, do you know how to do it using the normal CD?

[neat ingot]

I used critical regions

Whenever there’s 2 tail test for normal distribution hypothesis testing I always use critical region

Idk the normal way for two tails cus idk which way the sign faces

If it’s single tail I do it the usual way

[dusk robin]

try it tho

pls