Ruth’s Cafeteria orders lettuce once a week,on Wednesday,with delivery 2 days later,on Friday. Lettuce is used seven days a week,with an average daily use of twenty-five heads and a standard deviation of four heads.Determine what the stocking level and safety stock should be if the cafeteria manager wishes to have no more than a one percent chance of a stock-out during each review period.(Assume that the demand during the lead time and review period is normally distributed.)