Assume That the Current Date Is February 1, 2013 -The Actual Sales for February 2013 Were 43

Multiple Choice

Assume that the current date is February 1, 2013. The linear regression model was applied to a monthly time series data based on the last 24 months' sales. (from January 2011 through December 2012) . The following partial computer output summarizes the results.
$$\begin{array} { l c c } \text { Coeffficient } & \text { Estimate } & t \\\text { Intercept } & 4.3 & 2.07 \\\text { Slope } & 1.6 & 2.98\end{array}$$
-The actual sales for February 2013 were 43.7.What is the forecast error for February 2013?

A) 1.05
B) 2.2
C) -2.2
D) 0.95
E) 4.84