THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A brand manager is interested in determining if consumers prefer the new fragrance associated with a detergent.She surveyed 212 consumers and has them rank the new and old fragrances on a scale of 1 to 10.Of the 198 consumers who scored a different score on the new fragrance than on the old,the absolute values of the differences in their ratings were ranked.The smaller of the ranked sums,8,208,was for those individuals who rated the original fragrance higher.
-A random sample of 10 students was asked to rate,in a blind taste test,the quality of two brands of wine one domestic and one imported.Ratings were based on a scale from 1 (poor)to 10 (excellent).The accompanying table gives the results.Use the Wilcoxon signed rank test at the 10% level of significance to test the null hypothesis that the distribution of the paired differences is centered on 0 against the alternative that the population of all student wine drinkers prefers the imported brand.
Student

Question

Quizplus · Accepted Answer

The Answer of THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A brand manager is interested in determining if consumers prefer the new fragrance associated with a detergent.She surveyed 212 consumers and has them rank the new and old fragrances on a scale of 1 to 10.Of the 198 consumers who scored a different score on the new fragrance than on the old,the absolute values of the differences in their ratings were ranked.The smaller of the ranked sums,8,208,was for those individuals who rated the original fragrance higher.
-A random sample of 10 students was asked to rate,in a blind taste test,the quality of two brands of wine one domestic and one imported.Ratings were based on a scale from 1 (poor)to 10 (excellent).The accompanying table gives the results.Use the Wilcoxon signed rank test at the 10% level of significance to test the null hypothesis that the distribution of the paired differences is centered on 0 against the alternative that the population of all student wine drinkers prefers the imported brand.
Student