ii) Below is the correlation matrix of the variables Y, X₁, X₂ and X3. Test for the presence of multicollinearity between X1 and X2, between X1 and X3, and between X2 and X3 if the sample size was n=21.

ENGR.ECONOMIC ANALYSIS
14th Edition
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Author:NEWNAN
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Chapter1: Making Economics Decisions
Section: Chapter Questions
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(ii) Below is the correlation matrix of the variables Y, X₁, X2 and X3. Test for the
presence of multicollinearity between X1 and X2, between X1 and X3, and
between X2 and X3 if the sample size was n=21.
Y
X₁
X₂
X3
X₁
0.8986
X₂
0.9867
0.3123
X3
0.8995
0.8799
0.7664
Transcribed Image Text:(ii) Below is the correlation matrix of the variables Y, X₁, X2 and X3. Test for the presence of multicollinearity between X1 and X2, between X1 and X3, and between X2 and X3 if the sample size was n=21. Y X₁ X₂ X3 X₁ 0.8986 X₂ 0.9867 0.3123 X3 0.8995 0.8799 0.7664
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