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In exercise 7 a sales manager collected the following data

In exercise 7 a sales manager collected the following data on x = annual sales and y 5 years of experience. The estimated regression equation for these data is y = 80 + 4x.

a. Compute SST, SSR, and SSE.

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

c. What is the value of the sample correlationcoefficient?

a. Compute SST, SSR, and SSE.

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

c. What is the value of the sample correlationcoefficient?

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