A Public Policy Research Group Is Conducting a Study of Health

question 89

Multiple Choice

A public policy research group is conducting a study of health care plans and would like to estimate the average dollars contributed annually to health savings accounts by participating employees. A pilot study conducted a few months earlier indicated that the standard deviation of annual contributions to such plans was $1,225. The research group wants the study's findings to be within $100 of the true mean with a confidence level of 90%. What sample size is required?

• A) 407
• B) 361
• C) 512
• D) 546

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Definitions:

Price Elasticity

Refers to the responsiveness of the quantity demanded or supplied of a good or service to a change in its price.

Quantity Demanded

The full quantity of a good or service that consumers are inclined and financially capable of purchasing at a designated price.

Price Elasticity

An indicator for the degree to which the supply or demand level of a good adjusts following a change in its price.

Midpoint Method

A technique used in economics to measure the elasticity of demand or supply, which calculates the percentage change between two points by dividing the difference by the average of those points.