A Researcher for Procter & Gamble Selects Five States Randomly,and

question 73

Multiple Choice

A researcher for Procter & Gamble selects five states randomly,and then selects 10 supermarket chains within each of these states to call for a phone survey for a test market of a new shampoo.Which type of sampling procedure is being used?

• A)systematic sample
• B)simple random sample
• C)nonprobability sample
• D)cluster sample

---

Definitions:

Visual Processing

The interpretation of visual stimuli by the brain to understand and interact with the environment, involving several stages including perception, recognition, and interpretation.

Frequency

The rate at which something occurs or is repeated over a particular period of time or in a given sample.

Cycles Per Second

A measure of frequency, equivalent to the number of occurrences of a repeating event per second; also known as Hertz (Hz).

Opponent-Process Theory

Opponent-Process Theory is a psychological and neurological model explaining how the perception of colors is controlled by two opposing systems in the brain, creating a balance between excitatory and inhibitory processes.