A Vending Machine Company Wants to Check Three of Its

question 52

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.
$\begin{array}{ccc}\hline \text { Machine A } & \text { Machine B } & \text { Machine C } \\\hline 11.8 & 11.7 & 12.2 \\12.1 & 11.9 & 12.1 \\12.0 & 11.7 & 12.0 \\11.9 & 11.8 & 11.9 \\12.1 & 12.0 & 12.2 \\\hline\end{array}$

Is there a significant difference between the vending machines $\mathrm { A } , \mathrm { B }$ , and $\mathrm { C }$ ? Use $\alpha = 0.05$

• A) The \(F\)-test cannot be used to answer whether or not there is a significant difference between the means.
• B) No, there is no significant difference between the means.
• C) Yes, there is a significant difference between the means.

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Definitions:

Monitoring

The continuous or regular observation and recording of activities or processes for the purpose of ensuring compliance with standards or progress toward objectives.

Riskier Investment

An investment option that carries a higher probability of losing money but also the potential for higher returns.

Liability

An obligation that an individual or entity has to another individual or entity, often involving the payment of money.

Interest

The cost that creditors charge for use of their capital.