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# OCR (not MEI) S3 - 31/05/2012 Tweet

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1. Re: OCR (not MEI) S3 - 31/05/2012
(Original post by CJAW)
Can you put the confidence intervals in if you have done those questions? I couldn't remember my answers to them at all.
sure

1) i) [0.072,0.208]

4)i) [13.42,15.58]

5) iii) 0.9512 (what paddyfields said up there)

7) ii) 6.7389
2. Re: OCR (not MEI) S3 - 31/05/2012
(Original post by jamib0y)
sure

1) i) [0.072,0.208]

4)i) [13.42,15.58]

5) iii) 0.9512 (what paddyfields said up there)

7) ii) 6.7389
Glad to see I recognise those, thanks man!
3. Re: OCR (not MEI) S3 - 31/05/2012
(Original post by CJAW)
Glad to see I recognise those, thanks man!
always good to hear!
4. Re: OCR (not MEI) S3 - 31/05/2012
(Original post by jamib0y)
always good to hear!
question 4 looks a bit different to mine...did you use t-distribution?
5. Re: OCR (not MEI) S3 - 31/05/2012
Did everyone think this was a fairly easy paper?

I thought it was a nice paper, but I don't want to remain super hopeful, only to get mediocre grades
6. Re: OCR (not MEI) S3 - 31/05/2012
(Original post by NightBear)
Did everyone think this was a fairly easy paper?

I thought it was a nice paper, but I don't want to remain super hopeful, only to get mediocre grades
I thought it was a middleish paper. Harder than than the 2007/2008 variety but ultimately, if you knew what you were doing, it was quite approachable. In terms of grade boundaries, I would guess similar to jan 2012, particuarly since the paper was of a comparable standard. That's just my opinion , can't really be too sure...
Last edited by CJAW; 01-06-2012 at 21:04.
7. Re: OCR (not MEI) S3 - 31/05/2012
(Original post by Ree69)
question 4 looks a bit different to mine...did you use t-distribution?
most probably, what was the question again?

It was an OK paper, but some guy at my school did derp and thought 13/4 was 4.25, and being too cocky to try it out on a calculator got the entire 9 marker wrong, oh well, look on the bright side patty
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