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The following data show the brand, price (3), and the overall score for slx stereo headphones that were tested by Consumer Reports [Consumer Reports website).
The following data show the brand, price (3), and the overall score for slx stereo headphones that were tested by Consumer Reports [Consumer Reports website). The overall score ls based on sound duality and effectiveness of ambient noise reduction. Scores range from 0 (lowest) to 100 (highest). The estimated regression equation for these data is r = 23.0959 + 0.31909: . where z = price (3) and y = overall score. Brand Price ($) Score Bose 130 76 Scullcandyr 150 72 Koss 95 62 Phillipsfo'Neill 60 56 Den on FD 40 JVC 45 24 a. Compute SST, BER, and SSE [to 3 decimals). SST = 0 SSR = 0 SSE = 0 b. Compute the coefficient of determination r3 (to 3 decimals). r2 = 0 Comment on the goodness of t. Hlnt: If r3 is greater than 0.70, the estimated regression equation provides a good t. The least squares line 9 a good t as 0 proportion of the variability in 3; has been explained by the least squares line. c. What ls the value of the sample correlation coefficient [to 3 decimals)? .., = o
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