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

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The one where it said what should the boys conclusion be I put the correct answer but I said at the 1% level not realised it is the same for all v=3, so I thi9nk they will deduct 1 mark right?

Oh damn, I made the same mistake. Are you me lol?

I think that the grade boundaries are going to be such that 67-68 would get you 93-95 ums.

Reply 561

username1259045

questions 6e , grand total is not 100, add up observed and you get 200 so (130x39)/200

(edited 8 years ago)

Reply 562

Gome44

Original post by kingmathematica

Like I promised earlier, I am posting the questions from S3. I don't know how useful it is to everyone, but I hope people can come up with an unofficial. And, I must say it is a very tricky paper.

I have the solutions but can't upload them. I think someone else has done it already though

Reply 563

xyzmaster

Original post by Gome44

I have the solutions but can't upload them. I think someone else has done it already though

What wash your confidence interval part 4B. That's the only things that's wrong on the other one.

Reply 564

varshanct95

Original post by Gome44

I have the solutions but can't upload them. I think someone else has done it already though

yeahhh but they're just mainly the answers....could you please try to send your worked solutions please? that'll be helpful

Reply 565

Xin Xang

Original post by mmms95

questions 6e , grand total is not 100, add up observed and you get 200 so (130x39)/200

Nope. The grand total is 100.

I think you may have added the "total collumn" on by accident.

Reply 566

username1259045

for the mu =0.5 if you test at 5% level and say H0 is wrong can u still get the marks? cause you can set the sig level right?

Reply 567

Gome44

Original post by xyzmaster

What wash your confidence interval part 4B. That's the only things that's wrong on the other one.

ImageUploadedByStudent Room1432121384.430649.jpg

Reply 568

username1259045

Original post by Xin Xang

Nope. The grand total is 100.

I think you may have added the "total collumn" on by accident.

you're right, dammnit

Reply 569

Xin Xang

Original post by Gome44

I did the same thing

Reply 570

Gome44

Original post by varshanct95

yeahhh but they're just mainly the answers....could you please try to send your worked solutions please? that'll be helpful

I'll upload the photos one at a time

Reply 571

xyzmaster

Original post by Xin Xang

I did the same thing

Thank you

Reply 572

Amandeep_3

Does my stats 3 result have to go towards my further maths finals grade or can it go towards my maths finals grade?

Reply 573

STATER

Original post by Amandeep_3

Does my stats 3 result have to go towards my further maths finals grade or can it go towards my maths finals grade?

Further maths final grade

Reply 574

username1259045

Original post by mmms95

for the mu =0.5 if you test at 5% level and say H0 is wrong can u still get the marks? cause you can set the sig level right?

this questions is really bothering me, anybody???

Reply 575

shloke123

Original post by Xin Xang

I did the same thing

Original post by xyzmaster

Thank you

Hey so guys I did the exact same thing but i forgot the divide by 10 bit in the initial instance. so my sigma value was a power of ten out. otherwise my steps were the same, how many marks will I lose?

Reply 576

STATER

Original post by shloke123

Its normally "correct answer with no incorrect working seen" in which case accuracy marks are lost but you don't have to work out sigma to find the interval so you might get all the marks.

Reply 577

phgeorgiou

worst S3 exam made up of 6 exercise what the ... ex5 and 6 were so bull**** in my school out of the 40 students taking the exam not even one was okay with it

Reply 578

shloke123

Original post by STATER

Its normally "correct answer with no incorrect working seen" in which case accuracy marks are lost but you don't have to work out sigma to find the interval so you might get all the marks.

you do have to work out sigma? Its the mean plus or minus 1.96 x sigma over root 150 haha. And my sigma was a power of 10 out so my answers are also slighlty off. but my methd is correct. So i'll definitly lose marks, just how many is my question haha