TABLE 16-6 The President of a Chain of Department Stores Believes That

question 45

Short Answer

TABLE 16-6
The president of a chain of department stores believes that her stores' total sales have been showing a linear trend since 1990. She uses Microsoft Excel to obtain the partial output below. The dependent variable is sales (in millions of dollars), while the independent variable is coded years, where 1990 is coded as 0, 1991 is coded as 1, etc.
SUMMARY OUTPUT
Regression Statistics
Multiple R 0.604
R Square 0.365
Adjusted R Square 0.316
Standard Error 4.800
Observations 17
Coefficients
Intercept 31.2
Coded Year 0.78
-Referring to Table 16-6, the estimate of the amount by which sales (in millions of dollars) is increasing each year is ________.

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Definitions:

Equilibrium

A condition in markets where supply equals demand, and there is no external pressure for change.

Shortage

The insufficiency of a good or service that occurs when the quantity demanded exceeds the quantity supplied; shortages occur when the price is below the equilibrium price.

Price Elasticity of Demand

The rate at which demand for a product responds to its price being altered.

Short Run

The period in economic theory during which at least one factor of production is considered fixed.