A sales manager collected the following data on x = years of experience and y = annual sales ($1,000s). The estimated regression equation for these data is = 81 + 4x.

Salesperson	Years of Experience	Annual Sales ($1,000s)

1

1

80

2

3

97

3

4

97

4

4

102

5

6

103

6

8

111

7

10

119

8

10

128

9

11

117

10

13

136

(A) Compute SST, SSR, and SSE.

SST______

SSR_______

SSE________

(b) Compute the coefficient of determination

r².(Round your answer to three decimal places.)

r²=_______

(c)

What is the value of the sample correlation coefficient? (Round your answer to three decimal places.)

_______