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

question 8

Multiple Choice

In a hearing test,subjects estimate the loudness (in decibels) of sound,and the results are (mean = 70) : 68,67,70,71,68,75,68,62,80,73,68 What is the standard deviation?

• A)18
• B)4.73
• C)22.40
• D)324
• E)6.76

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Required Reserve Ratio

The fraction of deposits that a bank must hold in reserve and cannot lend out, set by the central bank to control the money supply.

Tax Cut

A reduction in the amount of taxes imposed by a government on individuals or businesses.

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