What Are the Degrees of Freedom Used to Test the Significance

question 58

Multiple Choice

What are the degrees of freedom used to test the significance of the slope in a simple linear regression equation?

• A)n − 1
• B)n − 2
• C)n − 1,n − 2
• D)(n − 1)(n − 2)

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Definitions:

Per Capita GDP

A measure that expresses a country's Gross Domestic Product divided by its total population, indicating the average economic output per person.

Population

The total number of people living in a specific area or country at a certain time.

Real GDP

Gross Domestic Product adjusted for inflation, measuring the value of all goods and services produced within a country in a given year, reflecting the actual purchasing power.

Inflation

The uplift in the aggregate price level for goods and services, reducing the efficacy of buying power.