# MGT 455 Grand Canyon Week 6 Assignment

Details:

Complete problems 9.11, 9.13, and 9.15 in the textbook.

Submit one Excel file. Put each problem result on a separate sheet in your file.

You are not required to submit this assignment to Turnitin, unless otherwise directed by your instructor. If so directed, refer to the Student Success Center for directions. Only Word documents can be submitted to Turnitin.

9.11 Stanford Rosenberg Computing wants to establish an assembly line for producing a new product, the Personal Digital Assistant (PDA).

IMMEDIATE

PREDECESSORS

A 12 —

B 15 A

C 8 A

D 5 B, C

E 20 D

Rosenberg’s goal is to produce 180 PDAs per hour.

a) What is the cycle time?
b) What is the theoretical minimum for the number of workstations that Rosenberg can achieve in this assembly line?
c) Can the theoretical minimum actually be reached when workstations are assigned?
9.13 Sue Helms Appliances wants to establish an assembly line to manufacture its new product, the Micro Popcorn Popper. The goal is to produce five poppers per hour.

The tasks, task times, and immediate predecessors for producing one Micro Popcorn Popper are as follows:

TIME

(min)

IMMEDIATE

PREDECESSORS

A 10 —

B 12 A

C 8 A, B

D 6 B, C

E 6 C

F 6 D, E

a) What is the theoretical minimum for the smallest number of workstations that Helms can achieve in this assembly line?
b) Graph the assembly line and assign workers to workstations. Can you assign them with the theoretical minimum?
c) What is the efficiency of your assignment?
9.15 The following table details the tasks required for Indiana-based Frank Pianki Industries to manufacture a fully portable industrial vacuum cleaner. The times in the table are in minutes. Demand forecasts indicate a need to operate with a cycle time of 10 minutes.

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