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. T eristics. Complete parts (a) throug - X Data table Expert Brand A Brand B C.C ratings between the two brands? 9 & S.E. jetermine the null and alternative E.G 21 B.I. 22 25 C.M. 23 C.N. 25 where HD = H 1 - H2 ) G.N. 26 R.M. 25 P. V. (where HD = # 1 - H 2 ) Print Done Get more help - Check answer View an example Clear all Ive this 2 DEC O 8 MacBook Air F10 * tion list K 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 below. accompanying data table contains the ratings accumulated over all four characteristics. Complete parts (a) through (d) estion 3 Click the icon to view the data table. estion 4 a. At the 0.10 level of significance, is there evidence of a difference in the mean ratings between the two brands? Let My be the mean rating for brand A and u2 be the mean rating for brand B. Determine the null and alternative estion 5 hypotheses for this test. O A. Ho: HD # 0 (where HD - H1 - H2) B. Ho: HD SO (where HD = H1 - H2) H 1 : HD > 0 estion 6 H 1 : HD = 0 O C. Ho: HD 20 (where HD - H1 7 H2) D. Ho: HD = 0 (where HD = H1 - H2) H1 : HD T 2 Hy : Thy 1 2 H1 : 141 T 2 Determine the value of the test statistic. ZSTAT = (Type an integer or a decimal. Round to two decimal places as needed. e this View an example Get more help - Clear all Check answer DEC O X MacBook Air F10 F * + 28 LO OO O w O