How are coefficient estimates from WLS (weighted least squares) interpreted?
A) they must be scaled up by the weight used in order to calculate marginal effects
B) there is no difference in interpretation since each observation is scaled by the same divisor
C) take the inverse of the natural logarithm of the coefficient to find marginal effects
D) They should only be used for hypothesis testing.Coefficient estimates from the un-weighted,original model should be used for prediction.
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