10.20 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, rich-ness, and acidity. The following data stored in Coffee contain the ratings accumulated over all four characteristics: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.d. Construct and interpret a 95% confidence interval estimate of the difference in the mean ratings between the two brands.
https://homeworkmarkets.com/wp-content/uploads/2020/08/logo1-300x75.png 0 0 Mike https://homeworkmarkets.com/wp-content/uploads/2020/08/logo1-300x75.png Mike2021-10-16 14:46:062021-10-16 14:46:06Business Statistics
The products and services provided by this website are for research and guidance purposes only. Students are solely responsible for doing their own work and using the materials provided as a reference.