A Vending Machine Company Wants to Check Three of Its

Multiple Choice

A vending machine company wants to check three of its machines to determine if they are properly dispensing 12 ounces of coffee. Their data is given below.
$\begin{array}{ccc}\hline \text { Machine A } & \text { Machine B } & \text { Machine C } \\\hline 11.8 & 11.7 & 12.2 \\12.1 & 11.9 & 12.1 \\12.0 & 11.7 & 12.0 \\11.9 & 11.8 & 11.9 \\12.1 & 12.0 & 12.2 \\\hline\end{array}$

Compute the test value for the coffee machines.

A) 5.06
B) 2.25
C) 4.86
D) 6.62