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nstructor-created question Question Help Nine experts rated two brands of coffee in a taste-testing experiment. A rating on a 7-point scale (1 = extremely unpleasing, 7 = extremely pleasing) is given for each of four characteristics: taste, aroma, richness, and acidity. The accompanying data table contains the ratings accumulated over all four characteristics. Complete parts (a) through (d) below. Click the icon to view the data table. Since the test statistic the critical value(s), Ho. There is evidence to conclude that the mean ratings are different between the two brands. b. What assumption is necessary about the population distribution in order to perform this test? O A. It must be assumed that the distribution of the differences between the measurements is skewed. O O B. It must be assumed that the distribution of the differences between the measurements is approximately normal. O C. It must be assumed that the distribution of the differences between the measurements is approximately uniform. on c. Determine the p-value in (a) and interpret its meaning. on The test statistic gives a p-value of. (Type an integer or a decimal. Round to three decimal places as needed.) on Interpret the meaning of the p-value in (a). Choose the correct answer below. on on O A. The p-value is the probability of obtaining a sample mean difference less extreme than this one if the population mean ratings for the two brands are the same. O B. The p-value is the probability of obtaining a sample mean difference at least as extreme as this one if the population mean ratings for the two brands are the same. on 3 O C. The p-value is the probability of failing to reject the null hypothesis when it is actually false