The following data show the brand, price ($), and the overall score for six stereo headphones that were tested by a certain magazine. The overall score is based on sound quality and effectiveness of ambient noise reduction. Scores range from 0 (lowest) to 100 (highest). The estimated regression equation for these data is ŷ = , where x = price ($) and y = overall scor
The following data show the brand, price ($), and the overall score for six stereo headphones that were tested by a certain magazine. The overall score is based on sound quality and effectiveness of ambient noise reduction. Scores range from 0 (lowest) to 100 (highest). The estimated regression equation for these data is ŷ = , where x = price ($) and y = overall scor
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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The following data show the brand, price ($), and the overall score for six stereo headphones that were tested by a certain magazine. The overall score is based on sound quality and effectiveness of ambient noise reduction. Scores
Brand | Price($) |
Score |
A | 180 | 76 |
B | 150 | 73 |
C | 95 | 63 |
D | 70 | 54 |
E | 70 | 40 |
F | 35 | 24 |
(a)
Compute SST, SSR, and SSE. (Round your answers to three decimal places.)
SST=
SSR=
SSE=
(b) Compute the coefficient of determination
r2.
(Round your answer to three decimal places.)Comment on the goodness of fit. (For purposes of this exercise, consider a proportion large if it is at least 0.55.)
(c)
What is the value of the sample correlation coefficient ? (Round your answer to three decimal places.)
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