Instruction 15-5
a Computer Used by a 24-Hour Banking Service

question 98

Multiple Choice

Instruction 15-5
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 15-5,at 1% level of significance

• A) there is sufficient evidence to conclude that the proportions of errors in transactions assigned to each of the five memory locations are all different.
• B) there is insufficient evidence to conclude that the proportion of errors in transactions assigned to each of the five memory locations are not all the same.
• C) there is insufficient evidence to conclude that the proportions of errors in transactions assigned to each of the five memory locations are all different.
• D) there is sufficient evidence to conclude that the proportion of errors in transactions assigned to each of the five memory locations are not all the same.

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Definitions:

Supplementary Classifications

Additional categories or groupings that complement the primary system of classification, often used to provide more detailed information.

V-codes

Diagnostic codes used in health care to indicate factors that influence health status and contact with health services, which are not due to a disease or injury.

E-codes

E-codes are a classification system used in health informatics for coding external causes of injuries, poisonings, and accidents.