In a Hearing Test,subjects Estimate the Loudness (In Decibels)of Sound,and

question 49

Multiple Choice

In a hearing test,subjects estimate the loudness (in decibels) of sound,and the results are;68,67,70,71,68,75,68,62,80,73,68 What is the third quartile?

• A)73
• B)68
• C)70.5
• D)67
• E)75

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Definitions:

Operational Definition

A clear, precise definition of a study variable in terms of the specific methods or procedures used to measure or identify it.

Independent Variable

In an experiment, the variable that is manipulated to test its effects on the dependent variable, to determine causality.

Convenience Sampling

A non-probability sampling technique where subjects are selected because of their convenient accessibility and proximity to the researcher.

Random Sampling

A technique used in research to select a sample in which each member of the population has an equal chance of being included.