Which of the Following Is Not an Accurate Statement Concerning

Multiple Choice

Which of the following is not an accurate statement concerning bias in forecasts?

A) Bias is calculated based on the mean absolute percent error (MAPE) .
B) Persistent negative bias implies forecasting frequently overstating actual values.
C) Bias is the sum of forecast errors.
D) Persistent positive bias implies frequently underestimating actual values.
E) Bias may indicate a shift in the demand pattern.