Please show how to use the ranked positional weights method.

Use the (i) Kilbridge and Wester rule and (ii) ranked positional weights method to assign work elements to stations, respectively

A proposal has been submitted to replace a group of assembly workers, each working individually, with an assembly line. The following table gives the individual work elements. Element Te (min) Immediate predecessors 1 1.0 N 0.5 3 0.8 1,2 4 0.3 2 5 1.2 3 6 0.2 3,4 7 0.5 4 00 8 1.5 5,6,7 The demand rate for this job is 1600 units/week (assume 40 h/week) and the current number of operators required to meet this demand is eight using the individual manual workers