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

question 90

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,the calculated value of the test statistic is

• A)-0.0185.
• B)1.5190.
• C)-0.1777.
• D)1.4999.

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