Select the assumptions needed to show the Weighted Least Squares estimator consistent. ? A1 ? A2 ? A3 ? A3a ? A4 ? A5 ? $E \left( x_i \epsilon_i / \sigma_i^2 \right) = 0$
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D A2: The data are independent and have a common variance. A3: The data are Normally distributed. Show more…
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