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planatory variable.Answer: dDifficulty: EasyBloom’s: KnowledgeAHead: Expected Values and Variances of the OLS EstimatorsBUSPROG: Feedback: The error u has the same variance given any value of the explanatory variable.13. The error term in a regression equation is said to exhibit homoskedasticty if _____.a. it has zero conditional meanb. it has the same variance for all values of the explanatory variable.c. it has the same value for all values of the explanatory variabled. if the error term has a value of one given any value of the explanatory variable.Answer: bDifficulty: EasyBloom’s: KnowledgeAHead: Expected Values and Variances of the OLS EstimatorsBUSPROG: Feedback: The error term in a regression equation is said to exhibit homoskedasticty if it has the same variance for all values of the explanatory variable.14. In the regression of y on x, the error term exhibits heteroskedasticity if _____.a. it has a constant varianceb. Var(y|x) is a function of xc. x is a function of yd. y is a function of xAnswer: bDifficulty: EasyBloom’s: KnowledgeAHead: Expected Values and Variances of the OLS EstimatorsBUSPROG: Feedback: Heteroskedasticity is present whenever Var(y|x) is a function of x because Var(u|x) = Var(y|x).15. What is the estimated value of the slope parameter when the regression equation, y = β0 + β1x1 + u passes through the origin?=1nyi=1n(yiy)c. i=1nxiyii=1nxi2d. i=1n(yiy)2Answer: cDifficulty: EasyBloom’s: KnowledgeAHead: Regression through the Origin and Regression on a ConstantBUSPROG: Feedback: The estimated value of the slope parameter when the regression equation passes through the origin is i=1nxiyii