Dr. Vance’s results are shown in Table 1.
Complete Table 1 and calculate the Mann-Whitney U U\,U for the data in Table 1. You must show your working and give your final answer to one decimal place.
Table 1: Number of errors recorded in each condition
| Condition X (White Noise) | Condition Y (Classical Music) | ||
|---|---|---|---|
| Number of errors | Rank | Number of errors | Rank |
| 2 | 1 | 5 | 4 |
| 5 | 4 | 8 | 8 |
| 4 | 2 | 9 | 9 |
| 5 | 4 | 6 | 6 |
| 7 | 7 | 11 | 10 |
| Total | Total |
638 exam-style questions on Edexcel A Level Psychology Methods. Each one has a worked solution and a mark scheme showing where the marks go.