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Exam (elaborations)

IOP2601 Exam Revision Pack

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These are Exam questions and solutions as well as those that were found in assignments, study guides and practice questions. When you work through these you will gain an excellent understanding of concepts, theories, techniques and methods which will allow you to answer exam questions. This will sa...

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  • February 1, 2021
  • 258
  • 2020/2021
  • Exam (elaborations)
  • Questions & answers
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MODULE :IOP2601

,IOP2601 Exam
Pack
Contains:

• Questions & Solutions 2014-2018
• Exam Papers Included
• Workbook Memos
• Formulae List

,IOP 2601 EXAM PACK 2018
MAY/ JUNE 2018
SECTION 1
1. False …IOP 2601 predominantly focuses on the results analysis stage
2. 10…add the frequencies
3. 2,the number with the most frequency
4. 0
5. Gender
6. ∑ x² = 125
7. Range …highest – lowest = 5-3 =2
𝑁+1 10+1
8. Median location = = = 5.5
2 2
3+4
Therefore median = = 3.5
2

9. ∑xy= 142
10.True
11.True
12.Common variance = r² x 100 = 0.95² x 100 = 90.25%
13.True
150
14. =0.15
1000
200
15. = 0.2
199
150 200 150 200
16.( x ) +( x ) =0.06
1000 999 999 1000

17.0.005,go to the t table 0.01 two tailed tailed, underneath 0.01 two tailed
you will see 0.005 on the one tailed.
18.False ….Reject Ho only if test statistic is greater than critical value.
1
TUTOR:ADDIE
CONTACT:062 914 2414

, 19. False..Null hypothesis always say there is no difference
20.True ,one tailed hypothesis test is directional.




SECTION 2

1(a) r = 0.92 ,strong positive relationship

(b) if students participate in the support programs they will definetly pass the
exam.

(c) Common variance = r² x 100 = 0.92² x 100 = 84.64%




xx 84.64%




(d) a = y – bx

= 6.4 -2.1 (3)

= 0.1

(e) Y = bx + a

= 2.1 (7) + 0.1

= 14.8



2
TUTOR:ADDIE
CONTACT:062 914 2414

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