- 10 Marks
Question
A business school preparing candidates for professional examinations conducted a mock examination to ascertain the level of preparedness of its candidates in two subjects: Quantitative Techniques in Business (QTB) and Management Information (MI). The table below gives the scores of twelve selected candidates.
| Candidates | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Score in QTB (x) | 35 | 77 | 95 | 28 | 76 | 80 | 90 | 62 | 39 | 65 | 90 | 37 |
| Score in MI (y) | 50 | 82 | 89 | 58 | 65 | 61 | 84 | 59 | 48 | 53 | 80 | 52 |
Required:
i. Calculate the Spearman’s rank correlation coefficient between xx and yy. (9 Marks)
ii. Comment on the result in (i) above. (1 Mark)
Answer
(ii) The result in (i) shows that there is a strong positive correlation between the
scores of the candidates in QTB and MI subjects.
- Tags: Correlation, Mock Examination Scores, Spearman’s Rank
- Level: Level 1
- Topic: Statistics
- Series: NOV 2014
- Uploader: Dotse