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\\ lll The following estimated regression equation based on 30 observations was presented. y = 17.6 + 3.8x1 2.3x2 + 7.6)(3 + 2.7x4 The values of SST and SSR are 1,809 and 1,755, respectively. (a) Compute R2. (Round your answer to three decimal places.) (b) Compute R52. (Round your answer to three decimal places.) 2 R. =:l (c) Comment on the goodness of t. (For purposes of this exercise, consider a proportion large if it is at least 0.55.) O The estimated regression equation did not provide a good fit as a large proportion of the variability in y has been explained by the estimated regression equation. 0 The estimated regression equation provided a good t as a small proportion of the variability in y has been explained by the estimated regression equation. 0 The estimated regression equation did not provide a good fit as a small proportion of the variability in y has been explained by the estimated regression equation. 0 The estimated regression equation provided a good t as a large proportion of the variability in y has been explained by the estimated regression equation