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: 1 2 3 4 5

Number of Transactions: 82 100 74 92 102

Number of Reported Errors 11 12 6 9 10

The bank manager wanted to test whether the proportion of errors in transactions assigned to each of the 5 memory locations differ. Referring to the table, which test would be used to properly analyze the data in this experiment?

Select one:

a.chi-squaretest for independence in a two-way contingency table

b.chi-squaretest for equal proportions in a one-way table

c.ANOVAFtest for main treatment effect

d.Ztest for the difference in two proportions