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Years of Annual Sales Salesperson Experience ($1,000s) 80 2. 97 3.

Years of Annual Sales Salesperson Experience ($1,000s) 80 2. 97 3.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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equation for these data is ý = 83 + 4x. Years of Annual Sales Salesperson Experience ($1,000s) 1 80 3 97 3 4 102 4 4 107 6. 103 6. 8 116 7 10 119 8 10 123 9. 11 127 10 13 136 (a) Compute the residuals. Years of Annual Sales Residuals Experience ($1,000s) 80 3 97 4 102 4 107 6. 103 8. 116 10 119 10 123 11 127 13 136 Construct a residual plot. 16- 16- 12- 12 8- 4 4 -4 -4 .. -8 -8- -12 -12 -16 -16 0 2 4 6 8 10 12 14 2. 4 6. 10 12 14 Years of Experience Years of Experience 16 16 12 12 Residuals Residuals
Transcribed Image Text:equation for these data is ý = 83 + 4x. Years of Annual Sales Salesperson Experience ($1,000s) 1 80 3 97 3 4 102 4 4 107 6. 103 6. 8 116 7 10 119 8 10 123 9. 11 127 10 13 136 (a) Compute the residuals. Years of Annual Sales Residuals Experience ($1,000s) 80 3 97 4 102 4 107 6. 103 8. 116 10 119 10 123 11 127 13 136 Construct a residual plot. 16- 16- 12- 12 8- 4 4 -4 -4 .. -8 -8- -12 -12 -16 -16 0 2 4 6 8 10 12 14 2. 4 6. 10 12 14 Years of Experience Years of Experience 16 16 12 12 Residuals Residuals
O Target : Expect More... N Students NSU Bb Module 1 - Spring 202... X Chapter 14.8 Homewo... Years of Annual Sales Residuals Experience ($1,000s) 1 80 97 4 102 4 107 6 103 8 116 10 119 10 123 11 127 13 136 Construct a residual plot. 16- 16 12- 12 8. 8 4 4 -4 .. -4 -8 -8 -12 -12 – 12- -16 -16 2 4 6 8 10 12 14 0 2 4 6 8 10 12 14 Years of Experience Years of Experience 16- 16 12 12 8- 4 4 0- -4 .. -4 -8- -8 - 12- -12 -16 -16 4 6 8 10 12 14 2 4 6 8 10 12 14 Years of Experience Years of Experience (b) Do the assumptions about the error terms seem reasonable in light of the residual plot? The plot suggests a funnel pattern in the residuals indicating that the error term assumptions appear reasonable. The plot suggests curvature in the residuals indicating that the error term assumptions appear reasonable. O The plot suggests a generally horizontal band of residual points indicating that the error term assumptions do not appear reasonable. O The plot suggests a generally horizontal band of residual points indicating that the error term assumptions appear reasonable. O The plot suggests a funnel pattern in the residuals indicating that the error term assumptions do not appear reasonable. Residuals Residuals Residuals Residuals
Transcribed Image Text:O Target : Expect More... N Students NSU Bb Module 1 - Spring 202... X Chapter 14.8 Homewo... Years of Annual Sales Residuals Experience ($1,000s) 1 80 97 4 102 4 107 6 103 8 116 10 119 10 123 11 127 13 136 Construct a residual plot. 16- 16 12- 12 8. 8 4 4 -4 .. -4 -8 -8 -12 -12 – 12- -16 -16 2 4 6 8 10 12 14 0 2 4 6 8 10 12 14 Years of Experience Years of Experience 16- 16 12 12 8- 4 4 0- -4 .. -4 -8- -8 - 12- -12 -16 -16 4 6 8 10 12 14 2 4 6 8 10 12 14 Years of Experience Years of Experience (b) Do the assumptions about the error terms seem reasonable in light of the residual plot? The plot suggests a funnel pattern in the residuals indicating that the error term assumptions appear reasonable. The plot suggests curvature in the residuals indicating that the error term assumptions appear reasonable. O The plot suggests a generally horizontal band of residual points indicating that the error term assumptions do not appear reasonable. O The plot suggests a generally horizontal band of residual points indicating that the error term assumptions appear reasonable. O The plot suggests a funnel pattern in the residuals indicating that the error term assumptions do not appear reasonable. Residuals Residuals Residuals Residuals
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