The Purpose of a Mass Survey Is to

question 23

Multiple Choice

The purpose of a mass survey is to

• A) influence the public to support a particular candidate or policy.
• B) measure the attitudes of a particular population.
• C) instruct elected officials on the rules of Congress.
• D) educate and inform the public about details of public policy.

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Definitions:

Chance Variation

Variations in observations or data that result from random effects or events that cannot be controlled or predicted.

Sample Mean

The average value of a sample set of numbers, calculated by adding all the values and dividing by the number of values.

Control Limits

The boundaries in a control chart beyond which points indicate a statistical process is out of control.

Standard Errors

Measures of the statistical accuracy of an estimate, indicating the variability of an estimate from sample to sample.