TABLE4 A computer used by a 24-hour banking service is supposed to randomly assi

Question

TABLE4 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. Memory Location 100 12 112 Total 450 48 498 82 74 92 umber of Transactions: Number of Total 102 10 112 93 8D 101 manager wanted to test whether the of errors in transactions assigned to each of the The bank 5 memory locations differ

Explanation / Answer

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 4, the degree of freedom of the test statistic is 4.

Option (2) is correct.

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