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.
Looking for solution of this Assignment?
WHY CHOOSE US?
We deliver quality original papers |
Our experts write quality original papers using academic databases.We dont use AI in our work. We refund your money if AI is detected |
Free revisions |
We offer our clients multiple free revisions just to ensure you get what you want. |
Discounted prices |
All our prices are discounted which makes it affordable to you. Use code FIRST15 to get your discount |
100% originality |
We deliver papers that are written from scratch to deliver 100% originality. Our papers are free from plagiarism and NO similarity.We have ZERO TOLERANCE TO USE OF AI |
On-time delivery |
We will deliver your paper on time even on short notice or short deadline, overnight essay or even an urgent essay |