A new product needs to be manufactured every 12 minutes. We want to help a company design a facility layout to make the products. Below is a table of the precedence and time requirements. We will use the info to design an assembly line. 

(a) Construct a precedence diagram (

b) Group the tasks into workstations (there may be multiple ways to group the tasks, show any one way that you think appropriate). How many workstations? Show how you group the tasks. 

(c) Determine the efficiency of the line 

(d) Calculate the expected output for an eight-hour day