Question: 15. The data from exercise 1 follow. xi 1 2 3 4 5 yi 3 7 5 11 14 The estimated regression equation for these

15. The data from exercise 1 follow.

xi 1 2 3 4 5 yi 3 7 5 11 14 The estimated regression equation for these data is yˆ = .20 + 2.60x.

a. Compute SSE, SST, and SSR using equations (14.8), (14.9), and (14.10).

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

c. Compute the sample correlation coefficient.

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