Given are five observations for two variables, and y. z46 15 18 20 y 57 51 42 12 11 The estimated regression equation for these data is y a. Compute SSE, SST, and SSR. SSE SST SSR 69.86 2.80x (to 2 decimals) (to 2 decimals) (to 2 decimals) b. Compute the coefficient of determination r. Comment on the goodness of fit. (to 3 decimals) The least squares line provided an -Select your answer-fit; c.Compute the sample correlation coefficient. Enter negative value as negative number. % of the variability in y has been explained by the estimated regression equation (to 1 decimal). (to 3 decimals)