When samples of size n are drawn from a population,then the sampling distribution of the sample mean 
is approximately normal,provided that n is reasonably large.
Definitions:
Imperfectly Competitive
Describes a market structure where the conditions necessary for perfect competition are not fully met, allowing firms some power to set prices.
Marginal Revenue Curve
A graphical representation that shows how additional revenue varies with changes in output.
Marginal Revenue
Enhanced earnings from selling an additional unit of a product or service.
Prefabricated Garages
Structures for vehicle storage that are manufactured off-site in standard sections and then transported and assembled at the final location.
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