Given the below values for a product Annual Sales Weekly standard deviation of sales Reorder point Leadtime Order size 780 units/year 15 units 40 units 2 weeks 70 units Questions. 1. Plot inventory vs. time graph 2. What is the average weeks of inventory kept ? 3. What is the inventory turnover ratio? 4. What is the value of coefficient of variation of sales? 5. What is the value of demand during leadtime? 6. What is the value of safety stock? The 40 week demand data for a product is given below. Replenishment cycle is weekly and a lead time is 3 days. 6 Week Sales 1 2 10 2 328 3 330 4 254 5 431 7 243 8 17 9 305 10 535 25 12 13 14 15 16 1571 2242851 361 3 17 184 18 46 19 20 417149 Week Sales 21 22 293450 23 9 6 24 25 2943350 26 438 27 405 28 304 29 387 30 238 31 605 32 274 33 434 34 35 357333 36 182 37 273 38 39 269_574 40 251 1) Draw the sales vs. time graph 2) Draw the demand profile histogram 3) Calculate average value of demand 4) Calculate safety stock 5) Calculate the target inventory for a service level of 90 %