Brand & Model Overall Score Samsung Ultrabook NP900X3C-ADIUS Apple MacBook Air MCLL/A Apple MacBook Air MD231LL/A HP ENVY 13-2050nr Spectre XT Sony VAIO SVS1311258 Acer Aspire 55-391-9880 Ultrabook Apple MacBook Pro MOSOLL/A Apple MacBook Pro MD313L/A Price (5) 1,300 1,200 800 1,200 1,000 Dell Inspiron 1132-45915LV Samsung NP535U3C-A0IUS Develop a scatter diagram with price as the independent variable Overall Score 800 1000 1200 1400 Price ( Overall Score RRSBR 800 1000 1200 1400 Price (5) What does the scatter diagram developed in part (a) indicate about the relationship between the two variables? There appears to be a negative linear relationship between price ($) and overall score. Provide an interpretation of the slope of the estimated regression equation O The slope gives the change in the overall score for every one dollar increase in the price. The slope gives the overall score when the price is $0. Overall Score There appears to be a positive linear relationship between price ($) and overall score. There appears to be no noticeable relationship between price ($) and overall score Use the least square method to develop the estimated regression equation. (Round your numerical values to three decimal places). The slope gives the price when the overall score is O The slope gives the change in the price for every one point decrease in the overall score. The slope gives the change in the price for every one point increase in the overall score. 28ARSBR 800 1000 1200 1400 Price (5) Overall Score 28RRSBR 800 1000 1200 1400 Price (5) Suppose the price for another laptop that Consumer Reports tested was $800. Predict the overall score for this laptop using the estimated regression equation developed in part (c). (Round your answer to one decimal place.) C

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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Transcribed Image Text:Brand & Model Samsung Ultrabook NP900X3C-A01US Apple MacBook Air MCLL/A Apple MacBook Air MD231LL/A HP ENVY 13-2050nr Spectre XT Overall Score 80 75 Price (5) Sony VAIO SVS13112FX Acer Aspire 55-391-9880 Ultrabook Apple MacBook Pro MD101LL/A Apple MacBook Pro MD313L/A Dell Inspiron 1132-45915LV Samsung NP535UC-ADIUS a) Develop a scatter diagram with price as the independent variable. 35 1,250 1,300 1,200 800 1,200 1,200 1,000 700 600 Overall Score 800 1000 1200 1400 Price (5) 77 73 63 Overall Score 28ARSSA 600 800 1000 1200 1400 Price ($) 35 ) What does the scatter diagram developed in part (a) indicate about the relationship between the two variables? There appears to be a negative linear relationship between price ($) and overall score. There appears to be a positive linear relationship between price ($) and overall score. There appears to be no noticeable relationship between price ($) and overall score. Use the least squares method to develop the estimated regression equation. (Round your numerical values to three decimal places). 600 800 1000 1200 1400 Price (5) 800 1000 1200 1400 Price (5) 2) Provide an interpretation of the slope of the estimated regression equation. The slope gives the change in the overall score for every one dollar increase in the price. The slope gives the overall score when the price is $0. The slope gives the price when the overall score is O. O The slope gives the change in the price for every one point decrease in the overall score. O The slope gives the change in the price for every one point increase in the overall score. Suppose the price for another laptop that Consumer Reports tested was $800. Predict the overall score for this laptop using the estimated regression equation developed in part (c). (Round your answer to one decimal place.)

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