Consider the Following to Answer Questions

question 10

Multiple Choice

Consider the following to answer questions
Previous surveys reported that more men than women trade stocks online.A local
brokerage firm randomly selected a sample of investors.They found that 45 of 234 men
traded online and 42 of 251 women traded online.
-The 95% confidence interval for the difference in proportions is

• A)4% to 9%.
• B)-4% to 9%.
• C)2% to 12%.
• D)-2% to 12%.
• E)-2% to -4%

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Definitions:

Revealed Preferences

An economic theory that determines consumer preferences by observing their purchasing behavior rather than through direct inquiry.

Francs

A currency unit formerly used in France and some other countries, and still used in some territories.

Consumption

The process of using goods and services to satisfy wants or needs.

Revealed Preferences

An economic theory that infers preferences of consumers by observing choices made under budget constraints, instead of through direct inquiry of preferences.