Two forecasting methods have been used to evaluate the same economic time series.

The results are

Forecast from Forecast from Realized Value

Method $1$ Method $2$ of the Series

$223210256$

$289320340$

$430390375$

$134112110$

$190150225$

$550490525$

Compare the effectiveness of these methods by computing the MSE, the MAD,

and the MAPE. Do each of the measures of forecasting accuracy indicate that the

same forecasting technique is best? If not, why?

$14.$ What does the term biased mean in reference to a parti