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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. E Click the icon to view the data table. a. At the 0.10 level of significance, is there evidence of a difference in the mean ratings between the two brands? Let u, be the mean rating for brand A and p, be the mean rating for brand B. Determine the null and alternative hypotheses for this test. - X A. Ho: PD =0 (where p = H1- 2) H HD #0 Data Table O C. Ho HD 0 (where Hp = H1-H2) H, HD = 0 Brand B 27 Brand A Еxpert C. S.E E.G B.I. C.M. C.N. G.N. RM. 25 26 The test statistic is 1STAT =U (Type an integer or a decimal. Round to two decimal places as needed.) 26 23 21 21 23 21 22 27 25 26 26 23 24 PV. 21 23

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. E Click the icon to view the data table. a. At the 0.10 level of significance, is there evidence of a difference in the mean ratings between the two brands? Let u, be the mean rating for brand A and p, be the mean rating for brand B. Determine the null and alternative hypotheses for this test. - X A. Ho: PD =0 (where p = H1- 2) H HD #0 Data Table O C. Ho HD 0 (where Hp = H1-H2) H, HD = 0 Brand B 27 Brand A Еxpert C. S.E E.G B.I. C.M. C.N. G.N. RM. 25 26 The test statistic is 1STAT =U (Type an integer or a decimal. Round to two decimal places as needed.) 26 23 21 21 23 21 22 27 25 26 26 23 24 PV. 21 23

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 11PPS
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Can you please help me with the T-Stat part of the question
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. E Click the icon to view the data table. a. At the 0.10 level of significance, is there evidence of a difference in the mean ratings between the two brands? Let u, be the mean rating for brand A and p, be the mean rating for brand B. Determine the null and alternative hypotheses for this test. A. Ho: HD =0 (where Hp = H1- H2) H: HD #0 Data Table O C. Ho Hp ±0 (where Hp = H4-H2) H, Pp = 0 Expert C.C. S. Brand A Brand B The test statistic is tsTAT = 25 27 26 26 (Type an integer or a decimal. Round to two decimal places as needed.) E.G 21 23 B.I. CM. C.N. G.N. R.M. 21 23 Incorre 21 22 26 27 26 25 23 24 <> P.V. 21 23 Print Done Enter your answer in the answer box and then click Check Answer. parts remaining Clear All Check Answer a rch f12 fg 144 no DII DDI fe
Transcribed Image Text: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. E Click the icon to view the data table. a. At the 0.10 level of significance, is there evidence of a difference in the mean ratings between the two brands? Let u, be the mean rating for brand A and p, be the mean rating for brand B. Determine the null and alternative hypotheses for this test. A. Ho: HD =0 (where Hp = H1- H2) H: HD #0 Data Table O C. Ho Hp ±0 (where Hp = H4-H2) H, Pp = 0 Expert C.C. S. Brand A Brand B The test statistic is tsTAT = 25 27 26 26 (Type an integer or a decimal. Round to two decimal places as needed.) E.G 21 23 B.I. CM. C.N. G.N. R.M. 21 23 Incorre 21 22 26 27 26 25 23 24 <> P.V. 21 23 Print Done Enter your answer in the answer box and then click Check Answer. parts remaining Clear All Check Answer a rch f12 fg 144 no DII DDI fe
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