Suppose that in Problem 13.31, t stat for testing the contribution of X 2 is 3.27. At

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Suppose that in Problem 13.31, t_statfor testing the contribution of X₂ is 3.27. At the 0.05 level of significance, is there evidence that X, makes a significant contribution to the model?

Data From Problem 13.31:

Suppose X₁ is a numerical variable and X₂ is a dummy variable with two categories and the regression equation for a sample of n = 20 is

= 6 + 4X; + 2X2i

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Business Statistics A First Course

ISBN: 9780321979018

7th Edition

Authors: David M. Levine, Kathryn A. Szabat, David F. Stephan

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Question Posted: Jan 18, 2024 09:21 AM

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Suppose that in Problem 13.31, t stat for testing the contribution of X 2 is 3.27. At

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Business Statistics A First Course

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