5) The estimated regression equation is Y = 10+ 2.5X, if X =0 than the predicted value of Y is equal to: 5) A) 12.5 B) 10 C) 2.5 D) 7.5 Scenario 1: The demand model relating the quantity of good XYZ sold (Q ) to the price of good (Pxyz) is reported below: Q, = 4.46 - .304 PXYZ Coefficient Standard Error 4.46 3.04 -.304 .3243 Analysis of Variance: Source DF Sum of Squares Regression 141.9 Residual 3718.9 Total 24 6) Refer to Scenario 1. What is the t-statistic for the slope coefficient? 6) A) -3.04 B) -0.94 C) -0.30 D) -4.46 7) Refer to Scenario 1. Is the slope coefficient statistically different from zero? 7) A) No. B) Yes. C) Inconclusive. D) None of the above