Table 109 -Use the Information in Table 10

Multiple Choice

Table 10.9
$$\begin{array} { | c | c | c | } \hline \text { Quarter } & \begin{array} { c } \text { Forecasted } \\\text { Demand } \\\text { (Units) }\end{array} & \begin{array} { c } \text { Actual } \\\text { Demand } \\\text { (Units) }\end{array} \\\hline 1 & 85 & 95 \\2 & 55 & 55 \\3 & 70 & 45 \\4 & 60 & 75 \\\hline\end{array}$$
-Use the information in Table 10.9.What is the standard deviation of forecast errors for the data?

A) 0 units
B) greater than 0, but less than or equal to 10 units
C) greater than 10, but less than 20 units
D) greater than 20 units