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Show which of the following models can be estimated by the OLS, where X, y and...

Show which of the following models can be estimated by the OLS, where X, y and Z are variables and α,β,γ are parameters to be estimated. The models can be rearranged if necessary.

(1) yt=α+βxt+ut                         [5 marks]

(2) yt=eαxtβeut                                [5 marks]

(3) yt=α+βγxt+ut                       [5 marks]

(4) yt=α+βxtZt+ut                      [5 marks]

Math   Statistics-And-Probability   
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