Specify the regression model. b. Determine the dependent and independent variables? c. What is the coefficient of determination, R2? What does this statistic tell you? (Is the model fitted the data reasonably well?) d. What is the standard error of the regression line? e. Test the hypothesis that b₁ b₂b3-b3=b4=b₁ = b = 0 i.e. jointly equal to zero. (Test the overall validity of the model) f. Interpret the result of the estimated coefficients. g. What are the signs of the coefficients? h. What would be the testing procedure if we assume that the relationship between public consumption and GDP is positive? Test at the 5 % level of significance. i. Repeat the same questions but with double log model: Sample regression line In = b + b, ln X₁,+ b₂ ln X₂,+ b3 ln X31+ b4 ln X4+ bạ ln Xs, + b, ln Xa+e 61
Specify the regression model. b. Determine the dependent and independent variables? c. What is the coefficient of determination, R2? What does this statistic tell you? (Is the model fitted the data reasonably well?) d. What is the standard error of the regression line? e. Test the hypothesis that b₁ b₂b3-b3=b4=b₁ = b = 0 i.e. jointly equal to zero. (Test the overall validity of the model) f. Interpret the result of the estimated coefficients. g. What are the signs of the coefficients? h. What would be the testing procedure if we assume that the relationship between public consumption and GDP is positive? Test at the 5 % level of significance. i. Repeat the same questions but with double log model: Sample regression line In = b + b, ln X₁,+ b₂ ln X₂,+ b3 ln X31+ b4 ln X4+ bạ ln Xs, + b, ln Xa+e 61
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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Step 1: Determine the variables
VIEWStep 2: Specify the regression model.
VIEWStep 3: Determine the dependent and independent variables
VIEWStep 4: Estimate the coefficient of determination
VIEWStep 5: Estimate a standard error of the regression line
VIEWStep 6: Test the overall validity of the model
VIEWStep 7: Interprete on the coefficients
VIEWStep 8: Test the sigle regression coefficient.
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