I need help with this set.

Problem 1: Consider a manufacturer that designs, produces and sells t-shirts during the summer season. The manager needs to make a stocking decision for the upcoming summer season. She believes that the demand is normally distributed with mean 5000 and standard deviation of 500 t-shirts. It costs $15 to manufacture a t-shirt and can sell it at $35. At the end of the season, the manufacturer can sell any unsold t-shirt at $10 at the local discount store

1. Cost of shortage (underage) is $20.

True

False

22.Cost of overage is $15.

True

False

23.Optimal service level is 0.8

True

False

24. Optimal ordering quantity for the retailer is 5420.

True

False

25. For the same price of $35 and salvage value of $10 given in the question, we can say, the manager will always order more than 5000 units as long as the per unit cost is less than $22.5.

True

False