Weekly demand for gaming consoles at liverpool, a mexican department store chain, is normally distributed with a meanof 1,000 and a standard deviation of 400. the replenishment lead time from the supplier is four weeks. liverpool istargeting a csl of 95 percent and uses a periodic review policy under which it reorders consoles every eight weeks. whatis the average order size? how much safety inventory of consoles should liverpool carry? what should its order up to levelbe? how much safety inventory would be required if liverpool switched to a continuous review policy?