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Mathematics, 11.05.2021 17:30 atifgujar

The article The Gap Between Wine Expert Ratings and Consumer Preferences" (Intl. J. of Wine Business Res., 2008: 335-351) studied differences between expert and consumer rat- ings by considering medal ratings for wines, which could be gold (G), silver (S) or bronze (B). Three categories were then established: 1. Rating is the same [(G, G), (B, B), (S, S) 2. Rating differs by one medal [(G, S), (S, G), (S, B), (B, S)l; 3. Rating differs by two medals (G, B),(B, G)]. The observed frequencies for these three categories were 69, 102 and 45, re- spectively. On the hypothesis of equally likely expert ratings and consumer ratings being assigned completely by chance, each of the nine medal pairs has probability 1/9. Carry out an appropriate2 test using a significance level of 0.10 by finding the P-value of the test.

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