The regression equation for a particular relationship is Y = 10 + (.78) X1 + (-.54) X2. Which conclusion is consistent with this equation?
a. The Y intercept is zero.
b. Neither independent variable has an important relationship with Y.
c. A value for a (the Y intercept) needs to be calculated before the equation can be interpreted.
d. The two independent variables have opposite effects on the dependent.
ANSWER: d
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