Refer to question 8. Prepare scatter plots of the values of X1 and X2 against Y. a.

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Refer to question 8. Prepare scatter plots of the values of X1 and X2 against Y.

a. Do these relationships seem to be linear or nonlinear?

b. Determine the parameter estimates for the regression function represented by:

Ŷi = b0 + b1X1i + b2X2i + b3X3i + b4X4i

Where X4i = X22i. What is the estimated regression function?

c. Consider the p-values for each βi in this model. Do these values indicate that any of the independent variables should be dropped from the model?

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Spreadsheet Modeling & Decision Analysis A Practical Introduction to Management Science

ISBN: 978-0324656633

5th edition

Authors: Cliff T. Ragsdale

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Question Posted: Nov 03, 2012 06:21 AM

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Refer to question 8. Prepare scatter plots of the values of X1 and X2 against Y. a.

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Spreadsheet Modeling & Decision Analysis A Practical Introduction to Management Science

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