If We Have 5 Years of Monthly Observations,we May Use

True/False

If we have 5 years of monthly observations,we may use the first four years to develop several competing forecasting models,and then use them to forecast the fifth year.Since we know the actual values in the fifth year,we can choose the technique that results in the most accurate forecast using either the mean absolute deviation (MAD)or the sum of squares for forecast error (SSE).