Next Several Questions refer to the following SAME paragraph: Consider the below data showing demand for gallons of icecream at a popular retail chain, over the year 2018 in thousands of units Year 2018 Month : Demand(Thousands) January 41 February 81.5 March 123.8 April 163.7 May 165.8 June 167.9 July 203.9 August 255.5 November 130.1 December 80.6 The 3-moving average forecast for Jan 2019 is closest to: 135K 197K 239K 141K The questions below refer to the following SAME paragraph: Suppose a retailer Mojo, holds safety stock for an item to accommodate a 98% service level with uncertain demand. There are two supply options: Supplier X taking 5 days to deliver replenishments, and Supplier Y taking 3 days to replenish. Both suppliers charge the same price for the item. Ignoring differences in fixed order costs, the retailer should choose: Supplier Y Option X only if the critical ratio is greater than 0.9 Supplier X Option Y only if the critical ratio is less than 0.9 Referring to the previous data for Retailer Mojo: Suppose the stdev of daily demand is 25 units. The safety stock the retailer will carry if she chooses Supplier Y is 115 units 121 units 0 89 units