Multiple Choice
The accompanying table shows the regression results when estimating y = β0 + β1x1 + β2x2 + β3x3 + ε. When testing whether or not x1 and x2 are jointly significant, the null hypothesis is ________.
A) H0: β1 = β2
B) H0: β1 ≠ β2
C) H0: β1 + β2 = 0
D) H0: β1 = β2 = 0
Correct Answer:

Verified
Correct Answer:
Verified
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