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

question 47

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 mean?

• A)70
• B)75
• C)68
• D)71
• E)80

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Definitions:

Confidence Interval

A volley of values, derived from analysis of statistical samples, that is expected to hold the value of a not-yet-identified population parameter.

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Housing Size

A measure of the living area provided by a home, typically quantified in square feet or meters.

Confidence Interval

A span of numbers, obtained from sampling data, that is expected to encompass the value of a not yet known population parameter at a given confidence level.