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

question 3

Essay

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, construct an R chart for the time required to register.

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Definitions:

Neurogenesis

The process of generating new neurons in the brain, which continues in certain brain regions throughout adulthood in humans.

Brain-derived Neurotropic Factor

A protein in the brain and peripheral nervous system that supports the survival of existing neurons and encourages the growth and differentiation of new neurons and synapses.

Cognitive-behavioral Therapy

A psychotherapeutic treatment that helps patients understand the thoughts and feelings that influence behaviors, often used to treat a wide range of disorders.

TMS

Transcranial Magnetic Stimulation, a non-invasive procedure that uses magnetic fields to stimulate nerve cells in the brain to treat depression and other conditions.