- [Maximum mark: 6]
Two judges, Brett and Clarence, rank the skill levels of eight sheepdogs in a competition. The sheepdogs are labelled A to H and the judges rank the dogs as shown in the table.
| Rank | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|
| Brett | A | C | D | B | E | F | G | H |
| Clarence | A | B | D | C | E | G | F | H |
(a) Write down the rank that Brett awards sheepdog B. [1]
(b) Calculate Spearman’s rank correlation coefficient for these data. [4]
(c) Comment on your answer to part (b) in terms of the ranks awarded by Brett and Clarence. [1]