Which of the following is true of heteroskedasticity? a) The R-squared statistic is affected by the presence of heteroskedasticity b) Heteroskedasticty causes inconsistency in the Ordinary Least Squares estimators c) The OLS estimators are not the best linear unbiased estimators if heteroskedasticity is present d) It is not possible to obtain F statistics that are robust to heteroskedasticity of an unknown form

Managerial Economics: Applications, Strategies and Tactics (MindTap Course List)
14th Edition
ISBN:9781305506381
Author:James R. McGuigan, R. Charles Moyer, Frederick H.deB. Harris
Publisher:James R. McGuigan, R. Charles Moyer, Frederick H.deB. Harris
Chapter4A: Problems In Applying The Linear Regression Model
Section: Chapter Questions
Problem 5E
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Which of the following is true of heteroskedasticity?

a) The R-squared statistic is affected by the presence of heteroskedasticity
b) Heteroskedasticty causes inconsistency in the Ordinary Least Squares estimators
c) The OLS estimators are not the best linear unbiased estimators if heteroskedasticity is present
d) It is not possible to obtain F statistics that are robust to heteroskedasticity of an unknown form
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