If an Economist Wishes to Determine Whether There Is Evidence

question 20

Multiple Choice

If an economist wishes to determine whether there is evidence that mean family income in a community exceeds $50,000

• A)either a one-tail or two-tail test could be used with equivalent results.
• B)a one-tail test should be utilized.
• C)a two-tail test should be utilized.
• D)None of the above.

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Definitions:

Circadian Rhythms

Internal biological clocks that regulate various physiological processes and behaviors on approximately a 24-hour cycle, including the sleep-wake cycle.

Seasonal Affective Disorder

A type of depression that occurs at a specific time of year, usually during winter, when there is less natural sunlight.

Cyclothymic Disorder

A mental disorder characterized by mood swings that are less severe than those in bipolar disorder.

Irritable

a state of increased sensitivity and easily becoming annoyed or upset.