The Graph Below Shows the Mean Success Rate of Cutting

question 16

Multiple Choice

The graph below shows the mean success rate of cutting down on smoking (positive score = success) in people who wanted to quit and people who did not want to quit. Which of the following statements is the most true?

• A)On average, people who wanted to quit were 25 times more successful than those who did not.
• B)On average, success was six times higher in people who wanted to quit than in those who did not.
• C)The average success was significantly higher in people who wanted to quit.
• D)The effect in the population is likely to be the same for those who did and did not want to quit.

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Definitions:

Utility

A measure of satisfaction, pleasure, or usefulness obtained from consuming goods and services.

Indifference Curves

Graphical representations showing combinations of goods or services that provide the same level of satisfaction to a consumer.

Ordinary Goods

In a consumer’s utility function, those for which additional units of one good are required to compensate for fewer units of another, and vice versa; and for which the consumer experiences a diminishing marginal rate of substitution when substituting one good in place of another.

Marginal Rate

The rate at which one variable changes over the change in another variable, often used in the context of taxes or marginal rate of substitution in economics.