In a Study That Seeks to Evaluate the Effect Caffeine

question 4

Multiple Choice

In a study that seeks to evaluate the effect caffeine has on narcoleptics,40 narcoleptic patients are randomly selected to participate in the study.Fifteen of the patients are given high doses of caffeine,15 are given moderate doses,and 10 are given low doses over a period of 30 days.The variable in this study is the:

• A) 40 narcoleptic patients.
• B) period of 30 days.
• C) dosage of caffeine administered.
• D) sample size used.

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Definitions:

Intermediation Revenue Model

A business model that generates income by serving as an intermediary in transactions between two or more parties.

Brokers

The people who organize transactions between buyers and sellers.

Money

A medium of exchange in the form of coins and banknotes; used to purchase goods and services or measure value and wealth.

Revenue

The income that a business earns from its normal business activities, usually from the sale of goods and services to customers.