Nora Damus Reviews Her Forecasting Triumphs and Failures as Part

question 34

Multiple Choice

Nora Damus reviews her forecasting triumphs and failures as part of her annual report to the Chief Operating Officer. She notes that her monthly forecast for batteries has a mean forecast error of 20, and a mean absolute deviation of 20. Which of the following statements about her forecast is BEST?

• A)Nora has miscalculated her mean forecast error.
• B)Nora has miscalculated her mean absolute deviation.
• C)Nora has a negative tracking signal.
• D)Nora has a positive tracking signal.