Please help with this homework practice problem, thank you!

Test Pre The following data show the brand, price ($), and the overall score for 6 stereo headphones that were tested by Consumer Reports. The overall score is based on sound quality and effectiveness of ambient noise reduction. Scores range from 0 (lowest) to 100 (highest). The estimated regression equation for these data is y = 25.19 + 0.298 x, where x = price ($) and y = overall score. Brand Price ($) Score Bose 180 75 Scullcandy 160 72 Koss 85 61 Phillips/O'Neill 70 56 Denon 60 40 JVC 45 26 Round your answers to three decimal places. a. Compute SST, SSR, and SSE. SST 1559 x SSR 1088.021 X SSE 470.974 b. Compute the coefficient of determination r 2. Comment on the goodness of fit. r2 = 0.660 The least squares line provided a very good fit : c. What is the value of the sample correlation coefficient? r= 0.812 x