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:

First Letters

Refers to the initial characters in a sequence of words or a piece of text, often considered in psychological tests or literature analysis.

Nonsense Syllable

A string of letters that does not form a meaningful word, often used in memory and learning experiments.

Working Memory

The segment of short-term memory tasked with the immediate conscious processing of perceptions and language.

Rehearsal

A cognitive process involving the repeated review or practice of information to aid in its retention and recall.