QUESTION 5 [9m] Nine experts rated two brands of Colombian 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 following data display the ratings accumulated over all four characteristics. Coffee SELF Test result: (a) At the 0.05 level of significance, is there evidence of a difference in the mean ratings between the two brands? (b) What assumption is necessary about the population distribution in order to perform this test? (c) Determine the p-value in (a) and interpret its meaning.
QUESTION 5 [9m] Nine experts rated two brands of Colombian 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 following data display the ratings accumulated over all four characteristics. Coffee SELF Test result: (a) At the 0.05 level of significance, is there evidence of a difference in the mean ratings between the two brands? (b) What assumption is necessary about the population distribution in order to perform this test? (c) Determine the p-value in (a) and interpret its meaning.
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 62E: Is it possible that P(AB)=P(A)? Explain.
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QUESTION 5 [9m]
Nine experts rated two brands of Colombian 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 following data display the ratings accumulated over all four characteristics. Coffee SELF Test result:
(a) At the 0.05 level of significance, is there evidence of a difference in the mean ratings between the two brands?
(b) What assumption is necessary about the population distribution in order to perform this test?
(c) Determine the p-value in (a) and interpret its meaning.
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