Considering the following printout from a two-factor ANOVA design,how many levels of factor A (Sample) were there in this study? 
Definitions:
Price Floor
A government or group-imposed price control that sets the minimum allowed price above the equilibrium price, potentially leading to surpluses.
Inefficiency
A situation where resources are not used in the most effective way, leading to waste or a loss of potential utility.
Market For Butter
The market for butter represents the buying and selling activities related to butter, including producers, consumers, and the interaction of supply and demand.
Price Floor
a government-imposed limit on how low a price can be charged for a good or service, intended to prevent prices from falling too low.
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