A survey was recently conducted in which random samples of car owners of Chrysler,GM,and Ford cars were surveyed to determine their satisfaction.Each owner was asked to rate overall satisfaction on a scale of 1 (poor)to 1000 (excellent).The following data were recorded: If the analysts are not willing to assume that the population ratings are normally distributed and will use the Kruskal-Wallis test to determine if the three companies have different median ratings,which company has the smallest sum of ranks?
A)Chrysler
B)GM
C)Ford
D)All three are equal.

Question

A survey was recently conducted in which random samples of car owners of Chrysler,GM,and Ford cars were surveyed to determine their satisfaction.Each owner was asked to rate overall satisfaction on a scale of 1 (poor)to 1000 (excellent).The following data were recorded:  If the analysts are not willing to assume that the population ratings are normally distributed and will use the Kruskal-Wallis test to determine if the three companies have different median ratings,which company has the smallest sum of ranks?
A)Chrysler 
B)GM 
C)Ford 
D)All three are equal.

Quizplus · Accepted Answer

The Kruskal-Wallis test involves ranking the data for each group and calculating the sum of ranks. The group with the smallest sum of ranks is the one with the lower median rating. From the given data, the sum of ranks for GM is 64, which is the smallest among the three companies. Therefore, the answer is B) GM.

A Survey Was Recently Conducted in Which Random Samples of Car