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For the Model Y = β0 + β1x + β2xd

Question 30

Multiple Choice

For the model y = β0 + β1x + β2xd + ε, which of the following are the hypotheses for testing the individual significance of the interaction variable xd?


A) H0: xd = 0, HA: xd ≠ 0
B) H0: b2 = 0, HA: b2 ≠ 0
C) H0: β2 = 0, HA: β2 ≠ 0
D) H0: β2 ≠ 0, HA: β2 = 0

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