The Internal Auditing Staff of a Local Manufacturing Company Performs

question 133

Multiple Choice

The internal auditing staff of a local manufacturing company performs a sample audit each quarter to estimate the proportion of accounts that are delinquent (more than 90 days overdue) .For this quarter,the auditing staff randomly selected 400 customer accounts and found that 80 of these accounts were delinquent.What is the 95% confidence interval for the proportion of all delinquent customer accounts at this manufacturing company?

• A).1608 to .2392
• B).1992 to .2008
• C).1671 to .2329
• D).1485 to .2515
• E).1714 to .2286

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Definitions:

Prosperity

A state of flourishing, success, or wealth in a social or economic context.

Cyrus Field

An American entrepreneur and inventor best known for laying the first successful transatlantic telegraph cable in 1858, revolutionizing international communication.

Transatlantic Telegraph Cable

An undersea cable laid across the Atlantic Ocean used for telegraph communications, first successfully completed in 1866, markedly reducing communication time between Europe and North America.

Underwater

The term "underwater" refers to being submerged in or covered by water, often used in the context of diving, marine environments, or submerged objects.