Under Assumptions MLR.1 through MLR.4, E(B;) = B, for any value of Bj, j = 1, .., k: Bj is an a. unbiased estimator for Bj. Unbiasedness is a feature of the sampling distributions of ß; 's, which says nothing about the O b. estimates obtained from a given sample. It is always possible that one random sample, used to estimate (1), gives point estimates far from the true population parameters B;'s. Including one or more irrelevant variables in a multiple regression model, or overspecifying the c. model, does not affect the unbiasedness of the OLS estimators, but it can have undesirable effects of the variances of the OLS estimators. d. All of the above.
Under Assumptions MLR.1 through MLR.4, E(B;) = B, for any value of Bj, j = 1, .., k: Bj is an a. unbiased estimator for Bj. Unbiasedness is a feature of the sampling distributions of ß; 's, which says nothing about the O b. estimates obtained from a given sample. It is always possible that one random sample, used to estimate (1), gives point estimates far from the true population parameters B;'s. Including one or more irrelevant variables in a multiple regression model, or overspecifying the c. model, does not affect the unbiasedness of the OLS estimators, but it can have undesirable effects of the variances of the OLS estimators. d. All of the above.
Chapter4: Linear Functions
Section4.3: Fitting Linear Models To Data
Problem 34SE: For the following exercises, consider this scenario: The profit of a company decreased steadily...
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