TABLE 17-8
Recently, a University Switched to a New Type

question 36

Short Answer

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

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Definitions:

Per Se

A Latin phrase meaning "by itself" or "in itself," used to indicate something that is inherently or intrinsically the case.

Tying Agreements

Contracts where the buyer is required to purchase one product in order to buy another product, often considered anti-competitive.

Possible Justification

Potential reasoning or explanation that can support or legitimize a particular action or decision.

Market Leader

A company or brand that has the highest sales or market share in a particular industry or market.