TABLE 18-8
Recently, a University Switched to a New Type

question 107

Short Answer

TABLE 18-8
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 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.
$$\begin{array} { c c l l } \text { Day } & \text { Range } & \text { Mean } & \text { Std.Dev. } \\1 & 10 & 5.250 & 3.4949 \\2 & 31 & 15.250 & 10.3060 \\3 & 13 & 20.375 & 4.9262 \\4 & 21 & 22.875 & 8.3911 \\5 & 35 & 8.500 & 11.3767 \\6 & 18 & 7.875 & 6.9372 \\7 & 25 & 11.250 & 8.5815 \\8 & 30 & 7.875 & 9.5235 \\9 & 17 & 10.250 & 6.3640 \\10 & 22 & 9.500 & 7.8740 \\11 & 27 & 7.875 & 8.7086 \\12 & 26 & 12.875 & 9.3723\end{array}$$
-Referring to Table 18-8, an R chart is to be constructed for the time required to register. The upper control limit for this data set is _____.

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Definitions:

Proximal Radio-Ulnar

Joint located near the elbow that allows for the rotation of the forearm and the ability to turn the hand palm up or down.

Obturator Foramen

A large opening in the hip bone formed by the pubis and ischium that allows passage for nerves and blood vessels to the legs.

Severed

Cut or sliced off, often referring to a part of the body or to connections.

Distal Ends

Distal ends refer to the farthest points from the center or point of attachment in a body's structure.