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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