TABLE 1-1 The Manager of the Customer Service Division of a Major

question 4

Multiple Choice

TABLE 1-1
The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a videocassette recorder made by the company over the past 12 months are satisfied with their products.
-Referring to Table 1-1, the possible responses to the question "How many people are there in your household?" result in

• A) an ordinal scale variable.
• B) an interval scale variable.
• C) a nominal scale variable.
• D) a ratio scale variable.

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Definitions:

Relay

Any of a number of devices that receives a signal and then effects an action. In vehicle electrical circuits, relays are used to allow a small current circuit to control a large current circuit such as in a starter relay. Also known as a pilot.

Transistor

A semiconductor device used to amplify or switch electronic signals and electrical power, fundamental in modern electronic circuits.

V-Ref

Reference voltage. ECU or ECM conditioned voltage (usually 5 volts DC) supplied to various sensors (such as thermistors, potentiometers) in truck electronic circuits. In most cases, a portion of the voltage is returned to indicate the status of sensor.