Demand =	420,000	feet
Std Dev = ([(x - u)2]/N)1/2 =	??	feet
Profit =	$0.25	per foot
FSC Shortage Profit =	$2	per foot
Total Marginal Benefit, Cu =	??
Initial Cost =	$4	per foot
Cost to Purchase Lumber =	$3.40	per foot
Total Marginal Cost, Co =	??
Optimal Service Level =	??
Optimal Order Size =	??	feet
Divide by 12 builders =	??	per builder

Suppose Nice Lumber will stock the FSC certified lumber for 12 green builders. For each of these builders, demand is normally distributed with a mean of 35,000 board feet and a standard deviation of 17,000 board feet, and each builders demand is independent of other builders demand.

How many board-feet of FSC certified lumber should Nice Lumber purchase per