Arsey's S2 S14 Model Answers (IAL and (R) added)

tomorrow probs

Isn't the continuity correction p(X<35.5)? Not 34.5. Also, if p has to be really small for to approximate B to Po, that's why it made sense to use a normal approximation no?

For question 4b I forgot to minus 0.9227 from 1 to get 0.0773. So I got x = 28. How many method marks would I get?

Hi arsey. How likely do you reckon it is that a one tail test will be accepted for 5d because the question was really vague? If it's not accepted how many marks do you reckon I'll lose for it? Thanks

Are you doing model answers for d2?

tomorrow probs

I am not sure which one you mean but no,


your test is P(x>=135) so you look at what value makes sense for > and then the cc correction is inbetween

P(x >134) cc P(x > 134.5)

for it to be > 135.5 P(x > 136) which doesn't make sense.


You have made your own point

0.975 is not suitable for Poisson or Normal, for normal p needs to be close to 0.5, for Poisson p needs to be small. That is why you need to flip the problem and think about misses.

For question 2d, for the 'at least 7', so I used t>6 instead and got a different answer. Am I correct in assuming that?

the fact it tells you in the previous part it is a two tail should tell you the answer to your question.

I don't know but I seriously doubt it.

that said you will still get a lot of the marks as it is pretty much the same up to the conclusion of whether or not to reject null.

I can see this one causing a few arguments!

I thought it was quite tricky (for S2)

I have tried to put in some alternative solutions and if I think they will be accepted; however, I really don't know, it will depend on what is accepted on the MS. I would be surprised if they allow the normal approx as it really isn't suitable.

Past Boundaries

June 10 would be my guess



Module 100' 90' 80' 70' 60' 50' 40'
S2 Jun-13 74 69 64 56 48 40 33
S2 Jan-13 75 70 65 59 53 47 42
S2 Jun-12 74 69 64 56 49 42 35
S2 Jan-12 74 70 66 60 54 48 43
S2 Jun-11 75 67 59 50 41 33 25
S2 Jan-11 75 72 69 62 55 48 42
S2 Jun-10 74 68 62 54 46 38 31
S2 Jan-10 75 70 65 57 50 43 36
S2 Jun-09 75 69 62 54 46 38 30
S2 Jan-09 75 70 65 57 49 41 33
S2 Jun-08 75 70 65 58 51 44 37
S2 Jan-08 75 69 62 54 46 39 32
S2 Jun-07 75 69 63 55 48 41 34
S2 Jan-07 75 71 66 58 50 42 34
S2 Jun-06 75 71 66 58 50 43 36
S2 Jan-06 73 66 59 52 45 39 33
S2 Jun-05 75 68 61 54 48 42 36
S2 Jan-05 70 63 56 49 43 37 31
S2 Jun-04 75 70 64 57 50 44 38
S2 Jan-04 73 67 61 55 49 43 38
S2 Jun-03 71 64 57 50 44 38 32
S2 Jan-03 70 64 58 52 47 42 37
S2 Jun-02 72 65 58 51 44 37 30
S2 Jan-02 69 63 57 51 45 40 35
S2 Jun-01 75 68 60 52 45 38 31





I thought I did well....but now, I think I'd be lucky to get a C

I feel to lonely right now

Error here, error there, and I thought it went well...

Sent from my GT-N7100 using Tapatalk

I can see this one causing a few arguments!

I thought it was quite tricky (for S2)

I have tried to put in some alternative solutions and if I think they will be accepted; however, I really don't know, it will depend on what is accepted on the MS. I would be surprised if they allow the normal approx as it really isn't suitable.

Past Boundaries

June 10 would be my guess


Module 100' 90' 80' 70' 60' 50' 40'
S2 Jun-13 74 69 64 56 48 40 33
S2 Jan-13 75 70 65 59 53 47 42
S2 Jun-12 74 69 64 56 49 42 35
S2 Jan-12 74 70 66 60 54 48 43
S2 Jun-11 75 67 59 50 41 33 25
S2 Jan-11 75 72 69 62 55 48 42
S2 Jun-10 74 68 62 54 46 38 31
S2 Jan-10 75 70 65 57 50 43 36
S2 Jun-09 75 69 62 54 46 38 30
S2 Jan-09 75 70 65 57 49 41 33
S2 Jun-08 75 70 65 58 51 44 37
S2 Jan-08 75 69 62 54 46 39 32
S2 Jun-07 75 69 63 55 48 41 34
S2 Jan-07 75 71 66 58 50 42 34
S2 Jun-06 75 71 66 58 50 43 36
S2 Jan-06 73 66 59 52 45 39 33
S2 Jun-05 75 68 61 54 48 42 36
S2 Jan-05 70 63 56 49 43 37 31
S2 Jun-04 75 70 64 57 50 44 38
S2 Jan-04 73 67 61 55 49 43 38
S2 Jun-03 71 64 57 50 44 38 32
S2 Jan-03 70 64 58 52 47 42 37
S2 Jun-02 72 65 58 51 44 37 30
S2 Jan-02 69 63 57 51 45 40 35
S2 Jun-01 75 68 60 52 45 38 31