The following data show the brand, price (S), 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 reductio cores range from 0 (lowest) to 100 (highest). The estimated regression equation for these data is ý = 23.2437 +0.3176x, wherez-price ($) and yoverall score. Price ($) Score 180 76 Brand Bose Scullcandy Koss 150 71 85 61 Phillips/O'Neill 70 57 Denon 70 JVC 45 25 1. Compute SST, SSR, and SSE (to 3 decimals). X EST= 1834 SSR = 1356.49 X SSE= 477.506 Compute the coefficient of determination (to 3 decimals). X 0.740 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 provided ✓a good fit as a large ✓✓ proportion of the variability in has been explained by the least squares line. What is the value of the sample correlation coefficient (to 3 decimals)? Ky =0.860
The following data show the brand, price (S), 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 reductio cores range from 0 (lowest) to 100 (highest). The estimated regression equation for these data is ý = 23.2437 +0.3176x, wherez-price ($) and yoverall score. Price ($) Score 180 76 Brand Bose Scullcandy Koss 150 71 85 61 Phillips/O'Neill 70 57 Denon 70 JVC 45 25 1. Compute SST, SSR, and SSE (to 3 decimals). X EST= 1834 SSR = 1356.49 X SSE= 477.506 Compute the coefficient of determination (to 3 decimals). X 0.740 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 provided ✓a good fit as a large ✓✓ proportion of the variability in has been explained by the least squares line. What is the value of the sample correlation coefficient (to 3 decimals)? Ky =0.860
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter3: Straight Lines And Linear Functions
Section3.CR: Chapter Review Exercises
Problem 15CR: Life Expectancy The following table shows the average life expectancy, in years, of a child born in...
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