Use the Confidence Level and Sample Data to Find a Confidence

question 41

Multiple Choice

Use the confidence level and sample data to find a confidence interval for estimating the population µ.
-Test scores: $\mathrm { n } = 109 , \overline { \mathrm { x } } = 79.1 , \sigma = 6.9 ; 99$ percent

• A) \(77.4 < \mu < 80.8\)
• B) \(78.0 < \mu < 80.2\)
• C) \(77.8 < \mu < 80.4\)
• D) \(77.6 < \mu < 80.6\)

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Definitions:

Trade Agreements

Formal accords between countries or regions to reduce barriers to trade, such as tariffs and import quotas, and encourage economic cooperation.

United Nations

An international organization founded in 1945 aimed at promoting peace, security, and cooperation among countries.

Import Tariff

A tax imposed by a government on goods and services imported from other countries, used to control trade.

Deadweight Loss

A loss of economic efficiency that can occur when equilibrium in a market is not achieved or is not achievable.