the data from exercise 2 follow Xi = 3 12 6 20 14 Yi= XXXXXXXXXX The estimated regression equation for these data is = 68 -3x. a. Compute SSE, SST, and SSR. b. Compute the coefficient of determination...

the data from exercise 2 follow

Xi = 3  12  6  20  14

Yi= 55 40 55 10 15

The estimated regression equation for these data is  = 68 -3x.

a. Compute SSE, SST, and SSR.

b. Compute the coefficient of determination r². Comment on the goodness of fit.

c. Compute the sample correlation coefficient.