The Following Output Is Provided for a Linear Trend Regression-Based

Multiple Choice

The following output is provided for a linear trend regression-based forecasting model based on 12 months of data: Suppose that the actual sales for months 13-15 are: 720, 680, 800. Given this, which of the following is the forecast bias value for months 13-15?

A) Approximately 77.7
B) Approximately 233.2
C) About -56.8
D) Just under 80