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A sales manager collected the following data on annual sales and years of experi

ID: 1192831 • Letter: A

Question

A sales manager collected the following data on annual sales and years of experience.

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

a. Develop a scatter diagram for these data with years of experience as the independent variable.

b. Develop an estimated regression equation that can be used to predict annual sales given the years of experience.

c. Use the estimated regression equation to predict annual sales for a salesperson with 9 years of experience.

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

Explanation / Answer

a. No corelation observed from this data. So

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