SCENARIO 2-5 The Following Are the Duration in Minutes of a Sample

question 24

Multiple Choice

SCENARIO 2-5
The following are the duration in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier.

-Referring to Scenario 2-5,what is the cumulative relative frequency for the percentage of calls that lasted 10 minutes or more?

• A)0.16
• B)0.24
• C)0.41
• D)0.90

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Definitions:

Nonresponse Error

An error that occurs in survey research when some participants do not respond, potentially biasing the results.

Survey

A method for collecting information and data about a population by asking questions to a sample of that population to extrapolate insights or conclusions about the whole.

Cluster Samples

A sampling technique where the population is divided into groups (clusters) and a random sample of these clusters is selected to represent the whole population.

Sampling Error

Sampling error describes the difference between a sample statistic used to estimate a population parameter and the actual but unknown value of the parameter.