Researchers Studying the Sense of Audition Report That

question 180

Multiple Choice

Researchers studying the sense of audition report that:

• A) decibels are equally distant, as centimetres on a ruler are.
• B) everyday noises can be hazardous to hearing.
• C) the critical level for dangerous sound intensity begins at 90 decibels.
• D) a 60-decibel sound is twice as loud as a 30-decibel sound.

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Definitions:

Null Hypothesis

The assumption in hypothesis testing that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.

Alternative Hypothesis

A hypothesis that contradicts the null hypothesis, proposing that there is a significant difference or relationship in the data being analyzed.

Manufacturer

A company or individual that produces finished goods from raw materials on a large scale using machinery.

Freshman Class

The group of students in their first year at a high school, college, or university.