THEY ARE PROBABILISTIC INVENTORIES SO MAKE THE ENTIRE PROCESS CORRESPONDING AND READABLE WITH YOUR FORMULAS PLEASE

Case $13-2$

A company faces the problem of running out of merchandise during the time interval between placing and receiving an order. The data below gives a summary of previous demands during the delay time

$\backslash$table$[[\backslash$table$[[$Demand in time of$],[$delivery or delay$]],$Incidence frequency$],[130,10],[131-140,30],[141-150,90],[151-160,150],[161-170,101],[171-180,50],[181,9]]$

In the past, the reorder level was set at the average demand during the delay time. This policy has proven to be inadequate.

Suggest an ordering policy for the company.