Question: The second order polynomial time series regression model contains a variable W and a regression equation of y = 4 0 0 + 3 W
The second order polynomial time series regression model contains a variable W and a regression equation of y W W to forecast future values. If W represents a time period, what are the forecast and forecast error for time period if the actual value for time period is Select the best answer.
forecast value ; forecast error is
forecast value ; forecast error is
forecast value ; forecast error is
forecast value ; forecast error is
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