Instruction 15-3
a Computer Used by a 24-Hour Banking Service

question 87

Multiple Choice

Instruction 15-3
A computer used by a 24-hour banking service is supposed to randomly assign each transaction to one of five memory locations.A check at the end of a day's transactions gave the counts shown in the table to each of the five memory locations,along with the number of reported errors.
$$\begin{array} { | l | l | l | l | l | l | } \hline \text { Memory Location } & 1 & 2 & 3 & 4 & 5 \\\hline \text { Number of Transactions } & 82 & 100 & 74 & 92 & 102 \\\hline \text { Number of Reported Errors } & 11 & 12 & 6 & 9 & 10 \\\hline\end{array}$$ The bank manager wanted to test whether the proportion of errors in transactions assigned to each of the five memory locations differ.
-Referring to Instruction 15-3,which test would you use to properly analyse the data in this experiment?

• A)?² test for difference between two proportions.
• B)?² test for difference among more than two proportions.
• C)?² test of independence.
• D)None of the above.

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Definitions:

Autonomic Division

refers to the part of the nervous system responsible for control of the bodily functions not consciously directed, such as breathing, the heartbeat, and digestive processes.

Somatic Division

Is a part of the peripheral nervous system that handles voluntary control of body movements through the control of skeletal muscles.

Spatial Precision

The accuracy and exactness of positioning and movement within a given space.

fMRI

Functional Magnetic Resonance Imaging, a technology that measures brain activity by detecting associated changes in blood flow.