The Workers in a Factory Are Organized into 5-Person Teams

question 39

Multiple Choice

The workers in a factory are organized into 5-person teams.When conducting a work-environment survey,a researcher randomly selected 10 teams to obtain a total sample of 50 workers.The researcher used

• A)simple random sampling.
• B)stratified random sampling.
• C)proportionate stratified random sampling.
• D)cluster sampling.

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Definitions:

Mixture

A physical combination of two or more substances that retain their own identities and properties and can be separated by physical means.

Compound

A substance made up of two or more different elements chemically bonded together in a fixed ratio.

Alloy

A mixture of metals or a mixture of a metal and another element, achieved through melting and mixing.

Chromatography

A method used to separate components of a mixture based on the differential affinities of compounds to a mobile phase and a stationary phase.