The role of the tracking signal when used in forecasting is to a. Determine if the forecast bias is within the acceptable control limits.
When events are forecasted, it is not possible that this is done with absolute certainty as there will be some forecast bias. This bias will have to be within a certain range to make the forecasting less risky.
The tracking signal is therefore used to ensure that the range of the forecast bias is within the accepted parameters that were set.
Find out more on the tracking signal at https://brainly.com/question/13312380.