Problem $3$

The following information is given:

$\backslash$table$[[$Task$,$Performance time $($minutes$),\backslash$table$[[$Task must follow$],[$this task$]]],[$A$,5,-],[$B$,3,$A$],[$C$,4,$B$],[$D$,3,$B$],[$E$,6,$C$],[$F$,1,$C$],[$G$,4,$D$,$ E$,$ F$],[$H$,2,$G$],[,28,]]$

The assembly line has an $8-$minute cycle time.

a$)$ Draw the precedence diagram.

b$)$ Determine the number of workstations.

c$)$ Assign the tasks

d$)$ Calculate the efficiency.