Specialist Maths (Exam 2): Discussion, Questions & Potential Solutions

[mzhao]

No, you made the same mistake as I did! The answer is A. The question asks us: If p, then q? and gives us 5 options for q. We do NOT require "If q, then p" to be also true.

Oh right my apologies. I actually wrote A, so that is assuaging

[HamConspiracy]

I left the deviation for X  as 10/root(50). Lost a mark?

[Dais_Deorum]

Was t in hours for question 4? Well shit

[iroze007]

When you sub in 146.51 you get 0.049... so you still reject. 146.52 gives p-value of 0.05.... so answer is 146.52

surely they will accept 146.51

[HamConspiracy]

I don't think you'd lose a mark for that.

[hom0sexual]

surely they will accept 146.51

It asked you to find the value of the sample mean and then to round it, so surely it would be 146.511... --> 146.51.

[jazzycab]

Nothing wrong with this question.

Spoiler

Of course... I must've missed it in my rush to get them done...

[popcorndudette]

It asked you to find the value of the sample mean and then to round it, so surely it would be 146.511... --> 146.51.

I'm pretty sure it asked for the minimum value of sample mean so that you don't reject the null hypothesis

[hom0sexual]

I'm pretty sure it asked for the minimum value of sample mean so that you don't reject the null hypothesis

Yeah, the minimum value that's right. The point is they asked you to round it not to find the minimum sample mean with 2 d.p. that would lead to H0 not being rejected.

[Onyx]

Of course... I must've missed it in my rush to get them done...

Left it in the first equation that u provided, will I get a mark? Should do right?

[DinWell]

Left it in the first equation that u provided, will I get a mark? Should do right?

You wouldn't get full marks if that's what your asking. It asked specifically for a certain form.

[HamConspiracy]

Would I lose the mark for not simplifying the surd?

[TheAspiringDoc]

Did anyone also get phi (1.618) as one of their answers? I think it was the vector collision point lol

[DinWell]

MCQ

1. E
2. B
3. D
4. A
5. D
6. C
7. C
8. E
9. C
10. A
11. C
12. E
13. B
14. C
15. E
16. B
17. E
18. D
19. E
20. B

ERQ1

1a.
1b: GRAPH TO COME
1c:
1d:
1ei:
1eii: \[g\left(x\right)=\lbrace\begin{array}{ll}
      -4 & -\sqrt{2}<x<0 \\
      4 & 0<x<\sqrt{2} \\
\end{array}\]
1eiii: GRAPH TO COME

ERQ2

2a:
2b:
2c/d: GRAPH TO COME
2e:

ERQ3

3a:
3b:
3ci:
3cii:
3d:
3e:
3f:

ERQ4

4a:
4b:
4c:
4d:
4e:

ERQ5

5a: IMAGE TO COME
5bi:
5bii:
5c:
5d:
5ei:
5eii:

ERQ6

6b:
6c:
6d: \(p<0.05\), therefore, \(H_{0}\) should be rejected
6e:
6f:
6g:

2e. isn't it 4pi/3 instead of 2pi/3?

[Mattjbr2]

Is question 9 C or D? Two answers have been provided so far.

2e. isn't it 4pi/3 instead of 2pi/3?

I got 4pi/3