Your company recently hired a consultant to help improve your firm's sales forecasts for one of your highest volume products. You have calculated the tracking signals for the consultant's forecast and put them into the table below. Should you keep using this forecasting consultant? Fire the consultant because too many tracking signals are above 4.0 . Keep the consultant because the tracking signal exhibits a definite upward trend, which is an indication of increasing sales for this product. Keep the consultant because the tracking signal is usually between 1.0 and 7.0 , which is ideal. Fire the consultant as only one of the tracking signals is above 7.0, which is the minimum acceptable level