Find the Coefficient of Variation for Each of the Two $\begin{array} { l l l l l l l } \text { Automated Menu: } 11.7 & 7.4 & 3.9 & 2.9 & 9.2 & 6.3 & 5.5 \end{array}$

question 86

Multiple Choice

Find the coefficient of variation for each of the two sets of data, then compare the variation. Round results to one decimal
place.
-The customer service department of a phone company is experimenting with two different systems. On Monday they try the first system which is based on an automated menu system. On Tuesday they try the second
System in which each caller is immediately connected with a live agent. A quality control manager selects a
Sample of seven calls each day. He records the time for each customer to have his or her question answered. The
Times (in minutes) are listed below. $\begin{array} { l l l l l l l } \text { Automated Menu: } 11.7 & 7.4 & 3.9 & 2.9 & 9.2 & 6.3 & 5.5 \end{array}$
$\begin{array} { l l l l l l l l l } \text { Live agent: } & 6.2 & 2.9 & 4.4 & 4.1 & 3.4 & 5.2 & 3.7 \end{array}$

• A) Automated Menu: \(45.4 \%\)
• Live agent: 26.3\%
• There is substantially more variation in the times for the automated menu system.
• B) Automated Menu: 25.2\%
• Live agent: \(41.5 \%\)
• There is substantially more variation in the times for the live agent.
• C) Automated Menu: \(47.1 \%\)
• Live agent: 27.3\%
• There is substantially more variation in the times for the automated menu system.
• D) Automated Menu: \(48.8 \%\)
• Live agent: 28.3\%
• There is substantially more variation in the times for the automated menu system.

Identify the biological bases and cognitive processes in memory recognition and recall.

Analyze the impact of contextual and environmental factors on memory accuracy.

Evaluate the role and reliability of eyewitness testimony in the justice system.

Understand the implications of memory errors on legal proceedings.

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Definitions:

Outside Interference

The involvement or intervention by external parties in the domestic affairs of another country, often to influence outcomes to their advantage.

Puritans

A group of English Protestants in the 16th and 17th centuries who sought to purify the Church of England of Roman Catholic practices.

Church Of England

The primary state church in England, also known as the Anglican Church, characterized by its middle path between Roman Catholicism and Protestant Reformation traditions.