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: Job No Date Jan. 2 Jan. 15 Feb. 3 Mar. 7 Mar. 24 May 19 June 12 Aug. 18 Sept. 2 Nov. 14 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. 30 41 49 58 65 78 82 92 98 520 1,610 1,420 670 2,210 2,550 620 3,110 1,210 750 2,700 $16,120 20,125 25,560 15,075 22,100 31,875 10,540 48,205 16,940 8,250 52,650 SLK SLK SLK SLK Job No. Unit Cost 49 58 65 78 82 92