Chapter 18 – Multiple Regression Statistics for Management and Economics-Sixth Edition Gerald Keller – Brian Warrack Chapter 18 – Multiple Regression

Figure 18.1 Scatter diagram and response surface with k=2 © 2003 Brooks/Cole Publishing / Thomson Learning Figure 18.1 Scatter diagram and response surface with k=2

Excel – Summary Output Regression Statistics from Example 18.1 ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel – Summary Output Regression Statistics from Example 18.1

©2003 Brooks/Cole, a division of Thomson Learning, Inc ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Minitab – Regression Analysis: Margin versus Number, Nearest, from Example 18.1

Excel - Analysis of Variance and Regression Analysis ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel - Analysis of Variance and Regression Analysis

Minitab – Analysis of Variance ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Minitab – Analysis of Variance

Excel – Prediction Interval – Using the Regression Equation ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel – Prediction Interval – Using the Regression Equation

Minitab – Predicted values for Observations ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Minitab – Predicted values for Observations

Excel-Regression Statistics – MBA Program Admissions Policy: Solution ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel-Regression Statistics – MBA Program Admissions Policy: Solution

Minitab-Regression Analysis: MBA GPA versus UnderGPA, GMAT, Work ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Minitab-Regression Analysis: MBA GPA versus UnderGPA, GMAT, Work

Excel – Summary Output Regression Statistics from Example 18.2 ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel – Summary Output Regression Statistics from Example 18.2

©2003 Brooks/Cole, a division of Thomson Learning, Inc ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Minitab- Regression Analysis: Price versus Bedrooms, House Size, Lot Size

Excel – Interpret Correlation A ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel – Interpret Correlation A

Excel – Interpret Correlation B ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel – Interpret Correlation B

Excel – Interpret Correlation C ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel – Interpret Correlation C

Minitab – Correlations: Price, Bedrooms ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Minitab – Correlations: Price, Bedrooms

Minitab – Correlations: Price, House Size ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Minitab – Correlations: Price, House Size

Minitab – Correlations: Price, Lot Size ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Minitab – Correlations: Price, Lot Size

Excel – Interpret Bedrooms, House Size and Lot Size ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel – Interpret Bedrooms, House Size and Lot Size

Minitab – Correlations: Bedrooms, H Size, Lot Size ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Minitab – Correlations: Bedrooms, H Size, Lot Size

Figure 18.4 Negative first-order autocorrelation ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Figure 18.4 Negative first-order autocorrelation

Figure 18.5 Durbin-Watson test ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Figure 18.5 Durbin-Watson test

Excel – Summary Output Regression Statistics from Example 18.3 ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel – Summary Output Regression Statistics from Example 18.3

Minitab – Regression Analysis: Tickets versus Snowfall, Temperature ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Minitab – Regression Analysis: Tickets versus Snowfall, Temperature

Excel - Plot of residuals versus predicted values in Example 18.3 ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel - Plot of residuals versus predicted values in Example 18.3

Excel-Plot of Residuals versus time periods in Example 18.3 ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel-Plot of Residuals versus time periods in Example 18.3

Excel – Durbin-Watson Statistic ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel – Durbin-Watson Statistic

Minitab – Durbin-Watson statistic = 0.59 ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Minitab – Durbin-Watson statistic = 0.59

Excel – Summary Output Regression Statistics ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel – Summary Output Regression Statistics

Minitab – Regress Analysis: Tickets versus Snowfall, Temperature, Time ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Minitab – Regress Analysis: Tickets versus Snowfall, Temperature, Time

Excel Histogram of residuals in Example 18.3 (Time variable included) ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel Histogram of residuals in Example 18.3 (Time variable included)

©2003 Brooks/Cole, a division of Thomson Learning, Inc ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel plot of residuals versus predicted values in Example 18.3 (Time variable included)

©2003 Brooks/Cole, a division of Thomson Learning, Inc ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel plot of residuals versus time periods in Example 18.3 (Time variable included)

Excel Durbin-Watson Statistic ©2003 Brooks/Cole, a division of Thomson Learning, Inc. Thomson Learning™ is a trademark used herein under license. Excel Durbin-Watson Statistic