Refer to the graph shown. Assume that the market is initially in equilibrium at a price of $6 and a quantity of 40 units. If the government imposes a $2 per-unit tax on this product, equilibrium quantity will change to: 
Definitions:
Geometric Mean
The central tendency of a set of numbers, calculated by taking the nth root of the product of n numbers, useful for sets of positive numbers.
Measure Of
A general term for a quantitative indicator used to assess or evaluate a specific attribute or property.
Geometric Mean
The central tendency of a set of numbers that is calculated by taking the nth root (where n is the count of numbers) of the product of the values.
Weighted Mean
The mean obtained by assigning each observation a weight that reflects its importance.
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