Problem 6-2

A manager wants to assign tasks to workstations as efficiently as possible, and achieve an hourly output of 33¹/₃ units. Assume the shop works a 60-minute hour. Assign the tasks shown in the accompanying precedence diagram (times are in minutes) to workstations using the following rules:

a.	In order of most following tasks. Tiebreaker: greatest positional weight.

Work Station	Tasks
I	(Click to select) A A, B D,C,F B, E G,H
II	(Click to select) B, E, D A, B B, E G, H D, C, F
III	(Click to select) F, G D, C F, G, H D, C, F C, F
IV	(Click to select) F, G, H F, G G, H F, H D, C, F

b.	In order of greatest positional weight.

Work Station	Tasks
I	(Click to select) B, E, D A, E B, E A A, B
II	(Click to select) B, E, D G, H D, C, F B, E A, B
III	(Click to select) B, E A, B C, B, F D, C, F G,H
IV	(Click to select) G, H B, E A B, E, D D, C, F

c.	What is the efficiency? (Round your answer to 2 decimal places. Omit the "%" sign in your response. )

Efficiency

%

rev: 02_04_2015_QC_CS-1789