Use the Given Degree of Confidence and Sample Data to Construct

question 38

Multiple Choice

Use the given degree of confidence and sample data to construct a confidence interval for the population mean $\mu$ . Assume that the population has a normal distribution. $n = 30 , \bar { x } = 84.6 , s = 10.5,90 \%$ confidence

• A) \(79.32 < \mu < 89.88\)
• B) \(81.36 < \mu < 87.84\)
• C) \(81.34 < \mu < 87.86\)
• D) \(80.68 < \mu < 88.52\)

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Definitions:

Alianza Hispano Americana

A fraternal aid society founded in 1894 to provide mutual aid and legal help to Hispanic Americans, advocating for their rights and welfare.

Tucson

A city in the U.S. state of Arizona, known for its rich history and cultural heritage, including Native American, Spanish, Mexican, and American influences.

Los Angeles

A sprawling Southern California city and the center of the nation’s film and television industry, known for its iconic Hollywood sign.

Miami

A vibrant, culturally diverse city located in southeastern Florida, known for its tropical climate, sprawling beaches, and significant Latin American influence.