Catherine Chao, Director of Marketing Research, Needs a Sample of Households

question 37

Multiple Choice

Catherine Chao, Director of Marketing Research, needs a sample of households to participate in the testing of a new toothpaste package.She chooses thirty-six of her closest friends.Catherine's sample is a _____________.

• A)cluster sample
• B)convenience sample
• C)quota sample
• D)systematic sample
• E)random sample

---

Definitions:

Microorganisms

Tiny living organisms, such as bacteria, viruses, fungi, and protozoa, that can be seen only under a microscope.

Central Venous Catheter

A tube placed into a large vein in the neck, chest, or groin, used to administer medication or fluids, obtain blood tests, and directly measure central venous pressure.

Sterile Technique

A set of practices used by healthcare professionals to maintain asepsis and minimize the risk of introducing pathogens during medical procedures.

Sterile Field

An area, usually in a surgical or procedural environment, that is free of all microorganisms to prevent infection during medical procedures.