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Years of Experience Annual Sales Salesperson ($1,000s) 1 1 80 2 3 97 3 4 92 4 4 102 103 6. 111 10 119 10 123 9. 11 117 12 126

Years of Experience Annual Sales Salesperson ($1,000s) 1 1 80 2 3 97 3 4 92 4 4 102 103 6. 111 10 119 10 123 9. 11 117 12 126

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter5: A Survey Of Other Common Functions
Section5.3: Modeling Data With Power Functions
Problem 6E: Urban Travel Times Population of cities and driving times are related, as shown in the accompanying...
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DATAfile: Sales A sales manager collected the following data on annual sales for new customer accounts and the number of years of experience for a sample of 10 salespersons. Years of Experience Annual Sales Salesperson ($1,000s) 80 2. 97 4 92 4 4 102 6. 103 6 8 111 7 10 119 8 10 123 11 117 10 13 136 (a) Develop a scatter diagram for these data with years of experience as the independent variable. 150 150 140+ 130 150T 140 150 140 140+ 130 130- 130- 120 120 120 120 * 120 110 110- 100 + 110 110- 100 100 * 90 E 80- 100- 90 90 90 E 80- 80 80 70 70 70 70 60 60 60 60 4 6 10 12 14 4 6 8 10 12 14 4 6 8 10 12 14 4 6 8 10 12 14 Years of Experience Years of Experience Years of Experience Years of Experience (b) Develop an estimated regression equation that can be used to predict annual sales (in $1,000s) given the years of experience. (c) Use the estimated regression equation to predict annual sales (in $1,000s) for a salesperson with 7 years of experience. $ | thousand Annual Sales ($1,000s) Annual Sales ($1,000s) Annual Sales ($1,000s) Annual Sales ($1,000s)
Transcribed Image Text:DATAfile: Sales A sales manager collected the following data on annual sales for new customer accounts and the number of years of experience for a sample of 10 salespersons. Years of Experience Annual Sales Salesperson ($1,000s) 80 2. 97 4 92 4 4 102 6. 103 6 8 111 7 10 119 8 10 123 11 117 10 13 136 (a) Develop a scatter diagram for these data with years of experience as the independent variable. 150 150 140+ 130 150T 140 150 140 140+ 130 130- 130- 120 120 120 120 * 120 110 110- 100 + 110 110- 100 100 * 90 E 80- 100- 90 90 90 E 80- 80 80 70 70 70 70 60 60 60 60 4 6 10 12 14 4 6 8 10 12 14 4 6 8 10 12 14 4 6 8 10 12 14 Years of Experience Years of Experience Years of Experience Years of Experience (b) Develop an estimated regression equation that can be used to predict annual sales (in $1,000s) given the years of experience. (c) Use the estimated regression equation to predict annual sales (in $1,000s) for a salesperson with 7 years of experience. $ | thousand Annual Sales ($1,000s) Annual Sales ($1,000s) Annual Sales ($1,000s) Annual Sales ($1,000s)
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