use this precedence diagram to solve

2.1 The table below lists the work elements (in minutes) to be performed on a manual assembly line and the precedence requirements that must be satisfied. Annual demand for the product will be 70,000 units. The line will operate one shift per week day culminating in 1900 shift hours per year. Expected line efficiency (proportion uptime) is 92%. Repositioning time per cycle is 9 seconds. The products will be moved through the line by a conveyor at a speed of 0.3 meters/min and all the stations are of equal length of 1 meter each. Work element 1 2 3 4 5 6 7 8 9 10 11 12 13 0.4 0.7 1.1 1.1 0.8 0.3 0.9 1.2 1.0 0.5 0.8 0.3 1.4 Time (minutes) Preceded by 1 1,2 2 3 3 4 5 5 5 6 7 7 8,9 10,11,12 Use the above information to solve the following problems: 2.1.1 Calculate the Takt Time for the assembly line. 2.1.2 Calculate the number of workers required based on the Takt Time, (8) (3) 04 0 EE 3 10 . 4 (0.9 2-0 . 03 (2) 08 5 2