Answered: Ž a. Compute SST, SSR, and SSE (to 3…

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:Exercise 14.18 Algo (Coefficient of Determination) The following data show the brand, price ($), and the overall score for six stereo headphones that were tested by Consumer Reports (Consumer Reports website). The overall score is based on sound quality and effectiveness of ambient noise reduction. Scores range from 0 (lowest) to 100 (highest). The estimated regression equation for these data is = 25.8023 +0.2920z, where a = price ($) and y = overall score. Score 75 71 41 61 a. Compute SST, SSR, and SSE (to 3 decimals). SST - SSR- SSE - b. Compute the coefficient of determination ² (to 3 decimals). 0 Icon Key Brand Bose Scullcandy Koss Exercise 14.18 Algo (Coefficient of Determination) Phillips/O'Neill Denon JVC Price ($) 180 160 95 70 70 25 Comment on the goodness of fit. Hint: If ² is greater than 0.70, the estimated regression equation provides a good fit. The least squares line-Select your answer - Va good fit as - Select your answer-proportion of the variability in y has been explained by the least squares line. c. What is the value of the sample correlation coefficient (to 3 decimals)? Txy = 57 40 26 Question 7 of 10 Question 7 of 10

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