Condeacute nast traveler magazine conducts an annual survey, Ask an Expert

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Condé Nast Traveler magazine conducts an annual survey of its readers in order to rate the top 80 cruise ships in the world. With 100 the highest possible rating, the overall ratings for a sample of ships from the Holland America, Princess, and Royal Caribbean cruise lines are shown. Use the Kruskal-Wallis test with a= .05 to determine whether the overall ratings among the three cruise lines differ significantly. What is your conclusion?

Holland America Princess Royal Caribbean
Ship Rating Ship Rating Ship Rating
Amsterdamn 84.5 Coral 85.1 Adventure 84.8
Maasdam 81.4 Dawn 79.0 Jewel 81.8
Ooterdam 84.0 Island 83.9 Mariner 84.0
Volendam 78.5 Priness 81.1 Navigator 85.9
Westerdam 80.9 Star 83.7 Serenade 87.4

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