Suppose that Sams Cat Hotel in Problem 7 uses a P system instead of a Q system.

Question:

Suppose that Sam’s Cat Hotel in Problem 7 uses a P system instead of a Q system. The average daily demand is 15 bags (90/6), and the standard deviation of daily demand is 6,124 bags (15/√6).
a. What P (In working days) and T should be used to approximate the cost trade-offs of the E0Q?
b. How much more safety stock is needed than with a Q system?
c. It is time for the periodic review. How much kitty litter should be ordered?