After Elections Were Held, It Was Desired to Estimate the Proportion

question 43

Multiple Choice

After elections were held, it was desired to estimate the proportion of voters who regretted that they did not vote. How many voters must be sampled in order to estimate the true proportion to within 2% (e.g., + 0.02) at the 90% confidence level? Assume that we believe this proportion lies close to 30%.

• A) n = 2017
• B) n = 2401
• C) n = 1692
• D) n = 1421
• E) Cannot determine because no estimate of p or q exists in this problem.

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Definitions:

Psychological Factors

Elements of a person's psychological state, such as emotions, attitudes, and motivations, that can influence their behavior and mental well-being.

Teenage Pregnancies

Situations where girls become pregnant during their teenage years, often presenting various social, economic, and health challenges.

Ethnic Groups

Populations that share common cultural traits, ancestry, language, history, and often, geographic origins.

Social Norms

Shared expectations and rules that guide behavior within a society or group, influencing how individuals act and interact.