19. Table 10.23 shows the tasks required to assemble an aluminum storm door and the length of time needed to complete each task. 01 TABLE 10.23 Task Information for Problem 19 Immediate Predecessor Task Task Time (sec) A None 32 BCDE A 43 (ebnos slave ads A 12 9.161 Jugtuo basia A mosd) si aled 23 B, C, D Senoits15 F E 25 chow HG None 20 F, G 5 (a) Calculate the cycle time needed to produce 480 doors in an 8-hour work day. (b) What is the minimum number of workstations that can be used on the line and still achieve the desired production rate? Balance the line and calculate its efficiency. A (c) What is the maximum output possible with these data? The minimum?