The Manager of the Service Department of a Local Car

question 12

Multiple Choice

The manager of the service department of a local car dealership has noted that the service times of a sample of 15 new automobiles has a standard deviation of 4 minutes.A 95% confidence interval estimate for the variance of service times for all their new automobiles is

• A) 8.576 to 39.794.
• B) 9.46 to 34.09.
• C) 2.144 to 9.948.
• D) 2.93 to 6.31.

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Definitions:

Supply-Chain Performance

The assessment of how effectively and efficiently a supply chain operates, often measured by metrics such as delivery time, quality, and cost.

Bar Code

A machine-readable representation of information typically used for identifying and tracking items through a series of parallel lines and spaces.

Radio Frequency Technology

Technology that utilizes radio waves to transmit data and communicate between devices without direct wire connections.

UPS

United Parcel Service, a global courier and package delivery company. Alternatively, an uninterruptible power supply, a device that provides emergency power during electrical outages.