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Official Edexcel S3 thread Wednesday 20 May 2015 Morning [6691]

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Reply 600

username1259045

Original post by Gome44

? Why would you reject Ho

if u use 5% its out of 90% confidence interval

Reply 601

dhrumitvora

Original post by burger97

did anyone get a positive value for rs?? i think i got positive 0.6 but i ranked the books from least amount of pages to most. made h0: rs = 0 and h1: rs>0

did exactly what u did incl ur hypothesis tests and dw we are right

Reply 602

Gome44

Original post by mmms95

if u use 5% its out of 90% confidence interval

Sorry, I don't understand. Can you post working?

Reply 603

username1259045

Original post by Gome44

Sorry, I don't understand. Can you post working?

actually i just realised, i was using the critical values... :s i guess we're not supposed to do that?

Reply 604

Gome44

Original post by mmms95

actually i just realised, i was using the critical values... :s i guess we're not supposed to do that?

I still have no idea what you're on about :tongue:

Reply 605

username1259045

Original post by Gome44

I still have no idea what you're on about :tongue:

lol , i wrote that z=1.6449 and at 5% z=1.96

1.96>1.6449 so reject H0

WHICH
doesn't really make sense now that i look back at it :P

Reply 606

username1259045

hopefully its less than 65 for an a. kinda feel disappointed but the other papers were not that hard, and this one had like 2 different questions

(edited 8 years ago)

Reply 607

rosie10

Hi

Does anyone have the solutions for question 6a?

Reply 608

TeeEm

Please take a minute on

http://www.thestudentroom.co.uk/showthread.php?t=3344567

Reply 609

username1259045

btw for a overall is fm, is it just 480 ums overall, or like you have to get an a in each paper?

Reply 610

Xin Xang

Original post by mmms95

btw for a overall is fm, is it just 480 ums overall, or like you have to get an a in each paper?

Its overall. Specific modules only matter if you want an A*.

Reply 611

AQUF42

58 TO 60 for A

Last year A was 64 and the paper was easier than this time

Reply 612

Amandeep_3

Original post by Xin Xang

Its overall. Specific modules only matter if you want an A*.

For A* in fm do you have to average 90% in your 3 A2s or do the specific modules matter here?

Reply 613

katyhay12

Original post by Amandeep_3

For A* in fm do you have to average 90% in your 3 A2s or do the specific modules matter here?

Average 90 across 3 A2 modules

Reply 614

rosie10

480 ums overall in FM PLUS 90% in your best 3 A2 modules

Reply 615

Xin Xang

Original post by Amandeep_3

For A* in fm do you have to average 90% in your 3 A2s or do the specific modules matter here?

Well the only condition is that the modules are A2 modules and not AS. So it can't be any of the 1's. They average the 3 best A2 modules. Assuming that the overall UMS marks exceed 480, if the A2 modules average to 90%, then you get an A*.