Decasion Making with Job Order Costs Alvarez Manufacturing Inc. is a job shop. The management of Alvarez Manufocturing Inc. uses the cost information from the job stheets to assess cost performance. Information on the total cost, product type, and quantity of items produced is as follows: a. On your own paper, develop a graph for each product (three graphs), whth Job Number (in date order) on the horizontal axis and Unit Cost en the vertical axis. Then, determine Avarez Marnufacturing Inc's cost performance over tume for the three products, Round all answers to the nearest cent. a. On your own paper, develop a graph for each product (three graphs), with Job Number (in date order) on the herizontal 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. b. Where is the best place to look to investigate Alvarez Manufacturing's cost perfarmance more precisely