Which of the following is true about forecasting errors? $($Select all that apply$)$

Check All That Apply

Forecast errors are lower for specific items than for aggregate groups of items. Forecast errors are lower for specific items than for aggregate groups of items.

Forecasting becomes easier when the specifications are more detailed.

Forecasting becomes easier when the specifications are more detailed.

Forecasting becomes more difficult at a reduced level of aggregation.

Forecasting becomes more difficult at a reduced level of aggregation.