TABLE 11-4 A Computer Used by a 24-Hour Banking Service Is Supposed

question 43

Multiple Choice

TABLE 11-4
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 11-4, which test would be used to properly analyze the data in this experiment?

• A) χ² test of independence
• B) χ² test for difference among more than two proportions
• C) χ² test for difference between two proportions
• D) none of the above

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Definitions:

Nuclear Families

Families consisting of parents (including single parents) and their children.

Extended Families

Families in which not only parents and their children but other kin—grandparents, cousins, nieces and nephews, or more distant family relations—share a household.

Allocaregiving

Child care and protection provided by group members other than the parents, usually other relatives.

Exosystem

Part of Bronfenbrenner's ecological systems theory, referring to the wider societal systems that do not directly involve the individual but still have an indirect impact on them.