The Number of Degrees of Freedom Needed to Construct 90

question 40

Multiple Choice

The number of degrees of freedom needed to construct 90% confidence interval for the difference between means when the data are gathered from paired samples,with 15 observations in each sample,is

• A)30.
• B)15.
• C)28.
• D)14.

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Definitions:

German Beer

Refers to beer produced in Germany, known for its quality and variety, and regulated by the Reinheitsgebot, or beer purity law.

American Beer

Typically refers to beer produced in the United States, often characterized by a lighter lager style but also includes a wide variety of craft brews.

Factor Endowments

The quantity and quality of labor, land, and capital that a country possesses, influencing its economic productivity.

Labor

The application of human physical and intellectual labor in the manufacture and provision of goods and services.