SCENARIO 15-8
Recently, a University Switched to a New Type

question 208

Short Answer

SCENARIO 15-8
Recently, a university switched to a new type of computer-based registration.The registrar is concerned with the amount of time (hours) students are spending on the computer registering under the new system.She decides to randomly select 8 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. $\begin{array}{cccc}\underline{\text { Day }} & \underline{\text { Range}}& \underline{\text { Mean }}& \underline{\text { Std.Dev. }}\\1 & 10 & 5.250 & 3.4949 \\2 & 31 & 15.250 & 10.3060 \\3 & 13 & 20.375 & 4.9262 \\4 & 21 & 22.875 & 8.3911 \\5 & 35 & 8.500 & 11.3767 \\6 & 18 & 7.875 & 6.9372 \\7 & 25 & 11.250 & 8.5815 \\8 & 30 & 7.875 & 9.5235 \\9 & 17 & 10.250 & 6.3640 \\10 & 22 & 9.500 & 7.8740 \\11 & 27 & 7.875 & 8.7086 \\12 & 26 & 12.875 & 9.3723\end{array}$

-Referring to SCENARIO 15-8, construct an R chart for the time required to register.

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Definitions:

Cable Medium

A type of physical transmission medium that uses cables, such as coaxial or fiber optic, to transmit data.

Coaxial Cable

A type of electrical cable consisting of a central conductor surrounded by an insulating layer and an outer conducting shield, used for transmitting television, telephone, and internet signals.

High Bandwidth

The ability of a communication system to transmit a large amount of data over a connection in a given amount of time, often associated with high-speed internet access.

Twisted-pair

A type of cabling that consists of two independently insulated wires twisted around each other to reduce electromagnetic interference.