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b. It the true model, satisfying Gauss-Markov assumptions, in the population is: final =β0+β1 attend +β2 stud y+u Wh
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b. It the true model, satisfying Gauss-Markov assumptions, in the population is: final =β0+β1 attend +β2 stud y+u Wh
b. It the true model, satisfying Gauss-Markov assumptions, in the population is: final =β0+β1 attend +β2 stud y+u Whore final indicates the final grade obtained in exam, attend is attendance rate and study is the number of hours studied in a week, then the OLS estimator ( β^1 ) from the above regression is unbiased. A researcher could not collect datn nbous study and estimated the following simple linear regression model: fmal=βˉ0+β~1 attend i. Analytically derive an expression for E[β~1] [10 marks] ii. Comment about the unbiasedness of βˉ1 and justify your answer. [ 3 marks]
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