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

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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.
 Day  Range  Mean  Std.Dev. 1105.2503.494923115.25010.306031320.3754.926242122.8758.39115358.50011.37676187.8756.937272511.2508.58158307.8759.523591710.2506.364010229.5007.874011277.8758.7086122612.8759.3723\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 _____.


Definitions:

Cardiorespiratory Fitness

The ability of the heart, lungs, and vascular system to supply oxygen-rich blood to working muscles during sustained physical activity.

Oxygen-rich Air

Air that has a higher concentration of oxygen than is found at sea level, often used for therapeutic purposes or in high-altitude environments.

Lungs

Respiratory organs responsible for exchanging oxygen and carbon dioxide between the blood and the air.

American College Of Sports Medicine

A leading organization in sports medicine and exercise science, promoting and integrating scientific research to provide educational and practical applications of exercise science and sports medicine.

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