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A sample of 15 consumers provided the following product ratings for three different products. Five consumers were randomly assigned to test and rate each product. Product A B C 59 89 69 63 94 44 74 98 39 48 80 58 64 99 50   Use the Kruskal-Wallis test and ? = 0.05 to determine whether there is a significant difference among the ratings for the products.

A sample of 15 consumers provided the following product ratings for three different products. Five consumers were randomly assigned to test and rate each product. Product A B C 59 89 69 63 94 44 74 98 39 48 80 58 64 99 50   Use the Kruskal-Wallis test and ? = 0.05 to determine whether there is a significant difference among the ratings for the products.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A sample of 15 consumers provided the following product ratings for three different products. Five consumers were randomly assigned to test and rate each product.
Product
A B C
59 89 69
63 94 44
74 98 39
48 80 58
64 99 50
 
Use the Kruskal-Wallis test and ? = 0.05 to determine whether there is a significant difference among the ratings for the products.
State the null and alternative hypotheses.

-H0: MedianA = MedianB = MedianC
Ha: MedianA < MedianB > MedianC
-H0: MedianA ≠ MedianB ≠ MedianC
Ha: MedianA = MedianB = MedianC    
-H0: MedianA = MedianB = MedianC
Ha: MedianA ≠ MedianB ≠ MedianC
-H0: All populations of product ratings are identical.
Ha: Not all populations of product ratings are identical.
-H0: Not all populations of product ratings are identical.
Ha: All populations of product ratings are identical.
Find the value of the test statistic.
Answer=??
 
Find the p-value. (Round your answer to three decimal places.)
p-value =??
 
State your conclusion.
-Reject H0. There is sufficient evidence to conclude that there is a significant difference among the ratings for the products.
-Do not reject H0. There is not sufficient evidence to conclude that there is a significant difference among the ratings for the products.    
-Reject H0. There is not sufficient evidence to conclude that there is a significant difference among the ratings for the products.
-Do not reject H0. There is sufficient evidence to conclude that there is a significant difference among the ratings for the products.
 
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