a-c. Consider the accompanying computer results, which describe regression analyses involving two independent variables X1 and X2

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a-c. Consider the accompanying computer results, which describe regression analyses involving two independent variables X1 and X2 and a dependent variable Y (using a different data set from the one used in Problem 2). Answer the same questions as in Problem 2 for this new printout.
d. What does this example illustrate about using a test of the hypothesis H0: β2 = 0 to assess confounding?
Regression of Y on X1 and X2

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Regression of Y on X1
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Applied Regression Analysis And Other Multivariable Methods

ISBN: 632

5th Edition

Authors: David G. Kleinbaum, Lawrence L. Kupper, Azhar Nizam, Eli S. Rosenberg

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