Analyze Alvarez Manufacturing Inc.s job costsAlvarez 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$.$Product Quantity Amount Jan. $21$ TT$520$ $$16,120$Jan. $1522$ SS$1,61020,125$Feb. $330$ SS$1,42025,560$Mar. $741$ TT$67015,075$Mar. $2449$ SLK$2,21022,100$May $1958$ SLK$2,55031,875$June $1265$ TT$62010,540$Aug. $1878$ SLK$3,11048,205$Sept. $282$ SS$1,21016,940$Nov. $1492$ TT$7508,250$Dec. $1298$ SLK$2,70052,650$a$.$ On your own paper, develop a graph for each product $($three graphs$),$ with Job Number $($in date order$)$ on the horizontal axis and Unit Cost on the vertical axis. Then, determine Alvarez Manufacturing Inc.$\text{'}$s cost performance over time for the three products. Round all answers to the nearest cent.Job No$.$Unit Cost$1$$fill in the blank $122$fill in the blank $230$fill in the blank $341$fill in the blank $449$fill in the blank $558$fill in the blank $665$fill in the blank $778$fill in the blank $882$fill in the blank $992$fill in the blank $1098$fill in the blank $11$b$.$ Where is the best place to look to investigate Alvarez Manufacturing Inc.$\text{'}$s cost performance more precisely?