Question

5+ Given the following regression equation (= 3.5 X1 + 2X2 + 12), the coefficient for X1 would mean that
a) two people who differ by one point on X1 would differ by 3.5 points on .
b) two people who differ by one point on X1 would differ by 3.5 points on , assuming that they did not differ on X2.
c) X1 causes a 3.5 unit change in the dependent variable.
d) X1 is more important than X2.

Answer

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