TABLE 12-4
A computer used by a 24-hour banking service is supposed to randomly assign each transaction to one of 5 memory locations. A check at the end of a day's transactions gave the counts shown in the table to each of the 5 memory locations, along with the number of reported errors.

The bank manager wanted to test whether the proportion of errors in transactions assigned to each of the 5 memory locations differ.
-Referring to Table 12-4, the calculated value of the test statistic is
A) -0.1777.
B) -0.0185.
C) 1.4999.
D) 1.5190.

Question

TABLE 12-4
A computer used by a 24-hour banking service is supposed to randomly assign each transaction to one of 5 memory locations. A check at the end of a day's transactions gave the counts shown in the table to each of the 5 memory locations, along with the number of reported errors.
  
The bank manager wanted to test whether the proportion of errors in transactions assigned to each of the 5 memory locations differ.
-Referring to Table 12-4, the calculated value of the test statistic is
A) -0.1777. 
B) -0.0185. 
C) 1.4999. 
D) 1.5190.

Quizplus · Accepted Answer

The correct test statistic value is 1.4999, which is likely derived from a specific calculation or context provided in Table 12-4.

TABLE 12-4 A Computer Used by a 24-Hour Banking Service Is Supposed