Refer to the data on the Dec. 2008 sanitation scores for 186 cruise ships, first presented in Exercise 2.24. The data are saved in the accompanying file. Assess whether the sanitation scores are approximately normally distributed.
Exercise 2.24
To minimize the potential for gastrointestinal disease outbreaks, all passenger cruise ships arriving at U.S. ports are subject to unannounced sanitation inspections. Ships are rated on a 100-point scale by the Centers for Disease Control and Prevention. A score of 86 or higher indicates that the ship is providing an accepted standard of sanitation. The latest (as of Jan. 2010) sanitation scores for 186 cruise ships are saved in the accompanying file. The first five and last five observations in the data set are listed in the accompanying table.

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Ship Name Sanitation Score Adventure of the Seas AIDAaura Albatross Amadea Amsterdam 98 100 69 Westerdam Wind Spirit Wind Sur Zuiderdanm