TABLE 12-3 A Computer Used by a 24-Hour Banking Service Is Supposed

question 159

Multiple Choice

TABLE 12-3
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 12-3, at 1% level of significance

• A) there is sufficient evidence to conclude that the proportions of errors in transactions assigned to each of the 5 memory locations are all different.
• B) there is insufficient evidence to conclude that the proportions of errors in transactions assigned to each of the 5 memory locations are all different.
• C) there is sufficient evidence to conclude that the proportion of errors in transactions assigned to each of the 5 memory locations are not all the same.
• D) there is insufficient evidence to conclude that the proportion of errors in transactions assigned to each of the 5 memory locations are not all the same.

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Definitions:

Effortful Processing

Effortful processing is a type of information processing that requires active work and attention in order to encode and store information in memory.

Encoding

The initial process of recording information in a form usable to memory.

Sensory Memory

The shortest-term element of memory, responsible for the ability to momentarily retain impressions of sensory information after the original stimuli have ended.

Working Memory

A brain-based system with restricted storage ability, for the purpose of temporarily maintaining information for processing operations.