Pollsters Use Random Digit Dialing to Gather National Samples for Surveys

question 4

Multiple Choice

Pollsters use random digit dialing to gather national samples for surveys because

• A)sampling errors are typically too low when other techniques are used.
• B)sampling errors are typically too high when other techniques are used.
• C)there is not a complete list of all Americans that can be used to identify the population.
• D)it is the only method that generates high levels of measurement error.

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Definitions:

Market Failure

When the free market's distribution of goods and services is inefficient, it typically results in a reduction of societal welfare.

Inefficient Allocation

A situation where resources are not used in the best possible way, often leading to waste or unmet needs.

Negative Externality

An undesirable outcome of an economic activity that affects third parties who did not choose to incur that cost or benefit.

Air Pollution

The presence of substances in the atmosphere that are harmful to human health, the environment or cause climate change.