(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 x, represent the Shore Excursions score and y represent the overall score.)ý - 68.73 + .24x,(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 theFood/Dining score, and y represent the overall score.)ý = 44.45 + .2586x, + .2498x,(c) Predict the overall score for a cruise ship with a Shore Excursions score of 79 and a Food/Dining Score of 94. (Round your answer to one decimal place.)88.442 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 onseveral 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.ShoreShipOverallFood/DiningExcursionsSeabourn Odyssey94.490.997.8Seabourn Pride93.084.296.7National Geographic Endeavor92.9100.088.5Seabourn Sojourn91.394.897.1Paul Gauguin90.587.991.2Seabourn Legend90.382.198.8Seabourn Spirit90.286.392.0Silver Explorer89.992.688.9Silver Spirit89.485.990.8Seven Seas Navigator89.283.390.5Silver Whisperer89.282.088.6National Geographic Explorer89.193.189.7Silver Cloud88.778.391.3Celebrity Xpedition87.291.773.6Silver Shadow87.275.089.7Silver Wind86.678.191.6SeaDream II86.277.490.9Wind Star86.176.591.5Wind Surf86.172.389.3Wind Spirit85.277.491.9

Given Observations Overall Shore Excursions Food/Dining 94.4 90.9 97.8 93 84.2 96.7 92.9…

(a) Determine an estimated regression equation that can be used to predict the overal score given the score for Shore Excursions. (Round your numerical values to two decimal places. Let x, represent the Shore Excursions score and y represent the overall score.) 08.75 24 (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.) - 44.45 + 258ax, + 2498x, (c) Predict the overall score for a cruise ship with a Shore Excursions score of 79 and a Food/Dining Score of 94. (Round your answer to one decimal place.) 88 442

(a) Determine an estimated regression equation that can be used to predict the overal score given the score for Shore Excursions. (Round your numerical values to two decimal places. Let x, represent the Shore Excursions score and y represent the overall score.) 08.75 24 (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.) - 44.45 + 258ax, + 2498x, (c) Predict the overall score for a cruise ship with a Shore Excursions score of 79 and a Food/Dining Score of 94. (Round your answer to one decimal place.) 88 442

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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Concept explainers

Correlation

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.

Question

(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 x, represent the Shore Excursions score and y represent the overall score.)
ý - 68.73 + .24x,
(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.)
ý = 44.45 + .2586x, + .2498x,
(c) Predict the overall score for a cruise ship with a Shore Excursions score of 79 and a Food/Dining Score of 94. (Round your answer to one decimal place.)
88.442

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
Wind Spirit
85.2
77.4
91.9

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