When Preparing a Representative Sample from a List of 200

question 20

Multiple Choice

When preparing a representative sample from a list of 200 customers who complained about errors in their statements,a _____ might select any 20 customers.

• A) systematic sample
• B) stratified sample
• C) random sample
• D) comprehensive sample

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Definitions:

Margin of Error

An expression of the amount of random sampling error in a survey’s results.

Test Statistic

A calculated value used in statistical testing to determine if the null hypothesis can be rejected.

Distribution

A mathematical description of observed or theoretical frequencies of occurrence of different possible outcomes in a dataset.

Sampling Distribution

The probability distribution of a given random-sample-based statistic, used to make inferences about a population.