Question: Looking for guidance on this practice question 2. Assumption 4 underlying the ordinary least squares method states that the unconditional mean of the error term

Looking for guidance on this practice question 2. Assumption 4 underlying

Looking for guidance on this practice question

2. Assumption 4 underlying the ordinary least squares method states that the unconditional mean of the error term is zero, that is: E(E) = 0. This is a weak assumption because if it is not satisfied, we would always be able to rewrite the population model in a way that makes Assumption 4 satisfied. Prove that this is the case

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