Final answer:
The price elasticity of supply for haircuts between $15 and $30 is calculated using the mid-point method and is found to be 1.50 when rounded to two decimal places.
Step-by-step explanation:
The price elasticity of supply for haircuts between $15 and $30 using the mid-point method can be calculated with the formula:
Price Elasticity of Supply (PES) = (% Change in Quantity Supplied) / (% Change in Price)
First, calculate the percentage changes using the midpoint formula:
% Change in Quantity Supplied = ((300 - 100) / ((300 + 100) / 2)) * 100 = (200 / 200) * 100 = 100%
% Change in Price = (($30 - $15) / (($30 + $15) / 2)) * 100 = ($15 / $22.50) * 100 ≈ 66.67%
Now, divide the percentage change in quantity by the percentage change in price:
PES = 100% / 66.67% ≈ 1.50
Therefore, the price elasticity of supply for haircuts between $15 and $30, rounded to two decimal places, is 1.50.