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

question 62

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 lower control limit for this data set is _____.

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Definitions:

Parent/Child Relationships

The dynamic and interaction between a parent and their child, which can influence the child's development, behavior, and emotional well-being.

Functional Autonomy

A concept in psychology that suggests certain behaviors might originate from past motivations but continue independently of those original reasons due to new motivations.

Adult Motivation

The reasons or incentives that drive behavior and decision-making in adults, often influenced by personal goals, needs, and desires.

Functional Autonomy

A concept in psychology where behaviors that once were driven by specific goals become an end in themselves due to repeated reinforcement.