Problem 1: (6.2/224 Silver et.al. (1998) Book) The demand pattern for another type of filter is: Jan. Feb. Mar. Apr. May June 18 31 23 95 29 37 July Aug. Sept. Oct. Nov. Dec. 50 39 30 88 22 36 Those filters cost the company $4.75 each; ordering and carrying costs are $35 and 0.24 $/$/year respectively. The variability coefficient equals 0.33. Use the Silver Meal heuristics to determine the sizes and timing of replenishments of stock. Variability coefficient: A parameter to determine when to use heuristics method, when demand pattern having variability exceeds some threshold value, it makes sense to change to a heuristic. It is Variability coefficient (VC). In particular, if VC