The number of observations minus the number of estimated coefficients in a regression equation is called:

A) degrees of freedom.
B) variance.
C) standard error fo the regression.
D) none of the above.


A

Economics

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Based on the information in the table, how big is the labor force?  Population 16 and older1,000,000Participation Rate80%Employed Workers720,000 

A. 576,000 B. 1,000,000 C. 800,000 D. 720,000

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Refer to the table shown. When average product is 8, total output is:Number of workersMarginal product of workers1527384105116775839010?1 

A. 40. B. 48. C. 32. D. 20.

Economics

Answer the following statements true (T) or false (F)

1. The slope of a graph relating two variables is -5. This indicates that as one variable decreases, the other variable also decreases. 2. In the graph for the linear equation S = 15 - 5T, with T on the horizontal axis, the vertical intercept of the graph is -5. 3. In a curved graph that is dome-shaped, the tangent line at it maximum or highest point has an infinite slope. 4. A market system is characterized by the private ownership of resources and the use of prices to coordinate economic activity.

Economics

Which of the following would cause both the equilibrium price and equilibrium quantity of barley (assume that barley is an inferior good) to increase?

A) an increase in consumer income B) a drought that sharply reduces barley output C) a decrease in consumer income D) unusually good weather that results in a bumper crop of barley

Economics