[Solution Library] Two friends attend a wine tasting party at which they taste and rate nine wines. Each wine is rated on a scale of 1 (undrinkable) to 20
Question: Two friends attend a wine tasting party at which they taste and rate nine wines. Each wine is rated on a scale of 1 (undrinkable) to 20 (wine of the century). At the end of the tasting the two friends compare their ratings to see how much they agree. Their ratings are below. Assume the ratings are no better than rankings. Calculate the appropriate correlation coefficient, and test it for significance. Tell what your decision means in the context of the exercise.
Wine Friend A Friend B
| 1 | 14 | 12 |
| 2 | 7 | 6 |
| 3 | 3 | 4 |
| 4 | 12 | 12 |
| 5 | 18 | 18 |
| 6 | 10 | 12 |
| 7 | 14 | 19 |
| 8 | 9 | 10 |
| 9 | 7 | 8 |
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