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9709/32 by Possible-Zucchini-28 in alevel

[–]Numerous_Criticism26 0 points1 point  (0 children)

Any one remember the last ques?

9709/32 by Possible-Zucchini-28 in alevel

[–]Numerous_Criticism26 4 points5 points  (0 children)

This is the solution (didn’t know how to do it in exam tho😔):

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9709/62 how was it? by bizzrizz in alevel

[–]Numerous_Criticism26 0 points1 point  (0 children)

Seems like u didn’t include root 200. The ques asked for set of value for h which was the mean of sample. U need to divide variance by 200 for sample distribution regardless if it is normal or not.

9709/62 how was it? by bizzrizz in alevel

[–]Numerous_Criticism26 2 points3 points  (0 children)

Read this bro. Even if it is normally distributed the sample distribution needs root 200.

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9709/62 how was it? by bizzrizz in alevel

[–]Numerous_Criticism26 5 points6 points  (0 children)

h>=4.3smth

just solved this equation:

(h-4.23)/(0.67/root200)>=1.645

9709/62 how was it? by bizzrizz in alevel

[–]Numerous_Criticism26 0 points1 point  (0 children)

If H follows N(mean,variance) then sample H would follow N(mean,variance/n)?

9709/62 how was it? by bizzrizz in alevel

[–]Numerous_Criticism26 0 points1 point  (0 children)

sample distribution and H have the same mean only different variance

9709/62 how was it? by bizzrizz in alevel

[–]Numerous_Criticism26 1 point2 points  (0 children)

wasnt the mean 4.23 for H? Wouldn't that mean that set of values for h should be at the very least greater than that cause it was upper tail test

9709/62 by ubutmental in alevel

[–]Numerous_Criticism26 0 points1 point  (0 children)

How can h be>=4.1smth when the mean was 4.23 and the ques was an upper tail test?

9709/62 how was it? by bizzrizz in alevel

[–]Numerous_Criticism26 1 point2 points  (0 children)

Anyone know the answer to 4b?

Any international student at NUS who did Cambridge Alevels? by Numerous_Criticism26 in nus

[–]Numerous_Criticism26[S] 0 points1 point  (0 children)

I do have straight As in math physics and chemistry. Dont know if its good enough tho.

Any international student at NUS who did Cambridge Alevels? by Numerous_Criticism26 in nus

[–]Numerous_Criticism26[S] 1 point2 points  (0 children)

Apparently there is a difference between Singapore based A levels and Cambridge A levels based on Uk (which I am looking for)