Instruction 18-14
Recently,a University Switched to a New Type of Computer-Based

question 91

Short Answer

Instruction 18-14
Recently,a university switched to a new type of computer-based registration.The registrar is concerned with the amount of time students are spending on the computer registering under the new system.She decides to randomly select eight students on each of the 12 days of the registration and determine the time each spends on the computer registering.The range,mean,and standard deviation of the times required to register are in the table that follows.
$\begin{array}{rrrr} \text { Day }& \text { Range}& \text { Mean }& \text { Std.Dev.}\\\hline1 & 10 & 5.250 & 3.4949 \\2 & 31 & 15.250 & 10.3060 \\3 & 13 & 20.375 & 4.9262 \\4 & 21 & 22875 & 8.3911 \\5 & 35 & 8.500 & 11.3767 \\6 & 18 & 7.875 & 6.9372 \\7 & 25 & 11.250 & 8.5815 \\8 & 30 & 7.875 & 9.5235 \\9 & 17 & 10.250 & 6.3640 \\10 & 22 & 9.500 & 7.8740 \\11 & 27 & 7.875 & 8.7086 \\12 & 26 & 12875 & 9.3723\end{array}$
-Referring to Instruction 18-14,the chart is to be used for the time required to register.The centre line of this chart is located at ________.

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Definitions:

Emotional Engagement

The investment of emotion and affect in activities, relationships, or learning, which can influence motivation and outcomes.

Information Processing System

A system, either computational or biological, that processes data or information following a set of procedures or algorithms.

Long-Term Memory

The aspect of memory in which information is stored for an extended period, potentially for a lifetime.

Cognitive System

A complex system in the brain responsible for thought, memory, learning, and perception.