Decision Making with Job Order Costs Alvarez Manufacturing Inc. Is a job shop. The management of Alvarez Manufacturing Inc. uses the cost information from the job sheets to assess cost performance. Information on the total cost, product type, and quantity of items produced is as follows: Date Job No. Amount Quantity Jan. 2 Jan. 15 Feb. 3 Mar. 7 Mar. 24 $16,120 20,125 25,560 15,075 22,100 31,875 10,540 48,205 16,940 8,250 52,650 520 1,610 1,420 670 2,210 2,550 620 3,110 1,210 750 2,700 30 41 49 58 SLK May 19 SLK June 12 Aug. 18 Sept. 2 Nov. 14 78 SLK 92 Dec. 12 a. On your own paper, develop a graph for each product (three graphs), with Job Number (in date order) on the horizontal axis and Unit Cost on the vertical axis. Then, determine Alvarez Manufacturing Inc.'s cost performance over time for the three products. Round all answers to the nearest cent. 98 SLK a. On your own paper, develop a graph for each product (three graphs), with Job Number (in date order) on the horizontal axis and Unit Cost on the vertical axis. Then, determine Alvarez Manufacturing Inc.'s cost performance over time for the three products. Round all answers to the nearest cent. Job No. Unit Cost 30 41 49 58 65 78 82 92 98 b. Where is the best place to look to investigate Alvarez Manufacturing's cost performance more precisely? Job cost sheets Drouin