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Consider the classical econometrics model with noexplanatory variables (n>1),Yi=

ID: 1244251 • Letter: C

Question

Consider the classical econometrics model with noexplanatory variables (n>1),Yi=Beta+Epsiloni What is true? The sample average is a linear estimator The sample average and the OLS estimate are thesams The sample average has the lowest variance among all linearestimators The sample average has the lowest variance among all linearand unbiased estimators Y1(the first observation) is a linear, unbiased estimator butit has a higher variance than the sample average. Consider the classical econometrics model with noexplanatory variables (n>1),Yi=Beta+Epsiloni What is true? The sample average is a linear estimator The sample average and the OLS estimate are thesams The sample average has the lowest variance among all linearestimators The sample average has the lowest variance among all linearand unbiased estimators Y1(the first observation) is a linear, unbiased estimator butit has a higher variance than the sample average.

Explanation / Answer

The sample average and the OLS estimate are the sams