The Manager of the Service Department of a Local Car

question 41

Multiple Choice

The manager of the service department of a local car dealership has noted that the service times of a sample of 16 new automobiles has a standard deviation of 5 minutes. A 95% confidence interval estimate for the variance of service times for all their new automobiles is

• A) 13.642 to 59.885.
• B) 9.46 to 34.09.
• C) 2.144 to 9.948.
• D) 2.728 to 11.977.

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Definitions:

Constant

A value that remains unchanged throughout the course of a calculation or process.

Expected Dividend

Expected Dividend is the forecasted payment of a portion of a company's earnings to its shareholders, typically expressed as an amount per share.

Proxy

A document authorizing a person to vote on another's behalf in a corporate or other formal meeting setting.

Vote

A formal indication of choice between two or more issues or options, often used in the context of elections or corporate decision-making.