题目
题目
单项选择题

An exponential model with a quarterly data forecasting equation is  log( ˆ Y i)=2.0886+0.0016Xi−0.0528Q1−0.0389Q2−0.0449Q3 Where Xi represents the coded quarter, Qi is a dummy variable for quarters, Qi=1 if it is ith quarter. What is the prediction when Xi=27, and it is the fourth quarter?

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思路分析
First, restate the given forecasting equation in plain terms: the model specifies log-base-10 of the predicted Y, not the natural log, as log10( Ŷ_i ) = 2.0886 + 0.0016 X_i − 0.0528 Q1 − 0.0389 Q2 − 0.0449 Q3. We are told Xi = 27 and that it is the fourth quarter. I......Login to view full explanation

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