Instruction 18-11
Recently, a University Switched to a New Type

question 5

Short Answer

Instruction 18-11
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 eight 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.
$\begin{array}{llll}\text { Day } &\text { Range } & \text { Mean }&\text { Std. Dev }\\\hline1 & 10 & 5.250 & 3.4949 \\2 & 31 & 15.250 & 10.3060 \\3 & 13 & 20.375 & 4.9262 \\4 & 21 & 22.875 & 8.3911 \\5 & 35 & 8.500 & 11.3767 \\6 & 18 & 7.875 & 6.9372 \\7 & 25 & 11.250 & 8.5815 \\8 & 30 & 7.875 & 9.5235 \\9 & 17 & 10.250 & 6.3640 \\10 & 22 & 9.500 & 7.8740 \\11 & 27 & 7.875 & 8.7086 \\12 & 26 & 12.875 & 9.3723\end{array}$

-Referring to Instruction 18-11,the chart is to be used for the time required to register.One way to obtain the control limits is to take the grand mean and add and subtract the product of A₂ times the average of the sample ranges.For this data set,the value of A₂ is _______

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Definitions:

Parallel Processing

The simultaneous distribution of information across different neural pathways.

Neural Pathway

A series of connected neurons along which electrical and chemical signals travel within the nervous system.

Information Distribution

The process of disseminating or spreading information among a group or over a network, ensuring accessibility and understanding by intended audiences.

Retina

A layer of cells at the back of the eye, sensitive to light, which triggers nerve impulses that pass via the optic nerve to the brain, where a visual image is formed.