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

question 63

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, 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.

---

Definitions:

Social Presence

The feeling that communicators have of engaging in unmediated, face-to-face interactions when messages are being sent electronically.

Electronic Communicators

Devices or platforms used for digital communication, such as computers, smartphones, and social media platforms.

Competent Communicator

An individual who effectively uses both verbal and nonverbal messages to convey ideas and feelings appropriately and sensitively across various contexts and cultures.

Effective Messages

Communications that are clearly understood, achieve their intended purpose, and receive a constructive response.