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Author Question: True or False.The independent variables x1 and x2 interact when the effect on E(y) of a change in x1 ... (Read 106 times)

BRWH

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on: Feb 14, 2020

Question 1

Consider the partial printout for an interaction regression analysis of the relationship between a dependent variable y and two independent variables x1 and x2.



a.Write the prediction equation for the interaction model.
b.Test the overall utility of the interaction model using the global F-test at α = .05.
c.Test the hypothesis (at α = .05) that x1 and x2 interact positively.
d.Estimate the change in y for each additional 1-unit increase in x1 when x2 = 6.  


Question 2

True or False.

The independent variables x1 and x2 interact when the effect on E(y) of a change in x1 depends on x2.
◦ True
◦ False
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
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Marked as best answer by BRWH on Feb 14, 2020

Gabe

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Reply #1 on: Feb 14, 2020
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BRWH

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Reply 2 on: Feb 14, 2020
Excellent

essyface1

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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