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

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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.  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}{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, an R chart is to be constructed for the time required to register.The upper control limit for this data set is _.


Definitions:

Differences in Style

This concerns the variations or disparities in the approach, method, or manner by which individuals perform tasks or exhibit behaviors.

Divided Attention Tasks

Cognitive tasks that require an individual to process two or more sources of information or perform two or more tasks simultaneously.

Older Adults

Individuals in a later phase of life, often characterized by retirement age, who experience various physical, cognitive, and social changes.

Experts

Individuals who possess a high level of knowledge, skill, or expertise in a particular domain or field.

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