Log Cabins Unlimited constructs vacation houses in the North Carolina Mountains. The company has developed the following value chart:
Average Number
Operations of Days
Receiving materials ............. 2
Storing materials ............... 10
Measuring and cutting materials ........ 9
Handling materials .............. 7
Setting up and moving scaffolding ....... 6
Assembling materials ............. 3
Building fireplace .............. 12
Pegging logs ............... 8
Cutting and framing doors and windows ...... 5
Sealing joints ................. 4
Waiting for county inspectors ......... 6
Inspecting property (county inspectors) ...... 1
a. What are the value-added activities and their total time?
b. What are the non-value-added activities and their total time?
c. Calculate the manufacturing cycle efficiency of the process.
d. Explain the difference between value-added and non-value-added activities.