MATLAB: An Introduction with Applications
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ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Transcribed Image Text:A statistical program is recommended.
The Condé Nast Traveler Gold List provides ratings for the top 20 small cruise ships. The data shown below are the scores each ship received based upon the results from Condé Nast Traveler's Annual
Readers' Choice Survey. Each score represents the percentage of respondents who rated a ship as excellent or very good on several criteria, including Shore Excursions and Food/Dining. An overall score
was also reported and used to rank the ships. The highest ranked ship, the Seabourn Odyssey, has an overall score of 94.4, the highest component of which is 97.8 for Food/Dining.
Shore
Ship
Overall
Food/Dining
Excursions
Seabourn Odyssey
94.4
90.9
97.8
Seabourn Pride
93.0
84.2
96.7
National Geographic Endeavor
92.9
100.0
88.5
Seabourn Sojourn
91.3
94.8
97.1
Paul Gauguin
90.5
87.9
91.2
Seabourn Legend
90.3
82.1
98.8
Seabourn Spirit
90.2
86.3
92.0
Silver Explorer
89.9
92.6
88.9
Silver Spirit
89.4
85.9
90.8
Seven Seas Navigator
89.2
83.3
90.5
Silver Whisperer
89.2
82.0
88.6
National Geographic Explorer
89.1
93.1
89.7
Silver Cloud
88.7
78.3
91.3
Celebrity Xpedition
87.2
91.7
73.6
Silver Shadow
87.2
75.0
89.7
Silver Wind
86.6
78.1
91.6
SeaDream II
86.2
77.4
90.9
Wind Star
86.1
76.5
91.5
Wind Surf
86.1
72.3
89.3
Transcribed Image Text:National Geographic Explorer
89.1
93.1
89.7
Silver Cloud
88.7
78.3
91.3
Celebrity Xpedition
87.2
91.7
73.6
Silver Shadow
87.2
75.0
89.7
Silver Wind
86.6
78.1
91.6
SeaDream II
86.2
77.4
90.9
Wind Star
86.1
76.5
91.5
Wind Surf
86.1
72.3
89.3
Wind Spirit
85.2
77.4
91.9
(a) Determine an estimated regression equation that can be used to predict the overall score given the score for Shore Excursions. (Round your numerical values to two decimal places. Let
X1
represent the Shore Excursions score and y represent the overall score.)
ŷ =
(b) Consider the addition of the independent variable Food/Dining. Develop the estimated regression equation that can be used to predict the overall score given the scores for Shore Excursions and
Food/Dining. (Round your numerical values to two decimal places. Let x, represent the Shore Excursions score, x, represent the Food/Dining score, and y represent the overall score.)
(c) Predict the overall score for a cruise ship with a Shore Excursions score of 81 and a Food/Dining Score of 91. (Round your answer to one decimal place.)
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