Julie Finds That the Number of Hours She Sleeps Each

question 201

Multiple Choice

Julie finds that the number of hours she sleeps each night is related to the scores she receives on quizzes the next day. As her sleep approaches 8 hours, her quiz scores improve; as her sleep drops to 5 hours, her quiz scores show a similar decline. Julie realizes that __________

• A) there is a negative correlation between the number of hours she sleeps and her quiz grades.
• B) there is a positive correlation between the number of hours she sleeps and her quiz grades.
• C) her low quiz scores are caused by sleep deprivation the night before a quiz.
• D) she should sleep about 10 hours a night to ensure 100 percent quiz grades.

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Definitions:

Real GDP

Gross Domestic Product adjusted for inflation, reflecting the value of all goods and services produced by an economy in a given year at constant prices.

Net Taxes

The net amount of money paid to the government through taxes after deducting any government transfers or subsidies received.

Supply-Side Economics

An economic theory proposing that by lowering taxes and reducing regulations to stimulate production, economic growth is achievable.

Aggregate Supply

The overall volume of goods and services that companies in a nation expect to provide for purchase during a certain timeframe.