In exercise 7 a sales manager collected the following data

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Reference no: EM13617960

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

Salesperson Years of Experience Annual Sales($1000s)

1 1 80

2 3 97

3 4 92

4 4 102

5 6 103

6 8 111

7 10 119

8 10 123

9 11 117

10 13 136

1) Compute SST, SSR, SSE

2) Compute the coefficient of determination r(squared) . Comment on the goodness of fit.

3) What is the value of the sample correlation coefficient?

Reference no: EM13617960

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