Researchers Have Found That People Who Report Having Trouble Sleeping

question 114

Multiple Choice

Researchers have found that people who report having trouble sleeping are more likely than others to become depressed. Which of the following conclusions, if any, follows from these data?

• A) Sleeplessness increases the probability of becoming depressed.
• B) People who are starting to become depressed have trouble sleeping.
• C) Certain genes increase depression and also, independently, lead to sleep troubles.
• D) None of these conclusions follow from the data.

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Definitions:

EBIT

Earnings Before Interest and Taxes; a measure of a firm's profit that includes all expenses except interest and income tax expenses.

Sales

The activity of selling goods or services in exchange for money or other compensation.

DFL

Degree of Financial Leverage, a ratio that measures the sensitivity of a company's earnings per share to fluctuations in its operating income.

EPS

Earnings Per Share; a company's profit divided by the outstanding shares of its common stock, indicating company profitability on a per-share basis.