Assume That a Sample Is Used to Estimate a Population $90 \% \text { confidence; } n = 430 , x = 80$

question 24

Multiple Choice

Assume that a sample is used to estimate a population proportion p. Find the margin of error E that corresponds to the given statistics and confidence level. Round the margin of error to four decimal places.
- $90 \% \text { confidence; } n = 430 , x = 80$

• A) 0.0386
• B) 0.0368
• C) 0.0331
• D) 0.0309

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Definitions:

Natural Monopolies

Market structures where a single firm can supply a good or service to an entire market at a lower cost than two or more firms, typically due to high fixed costs.

Creative Accounting

The manipulation of financial records and reports to present a more favorable view of a company's business activities.

Economic Substitution

The act of replacing one product with another due to changes in price, preferences, or other factors, reflecting the flexibility of consumption choices.

Industrial Regulation

Refers to government rules and laws that control how businesses can operate within certain industries to ensure fairness, safety, and competitiveness.