(Activity analysis) Farrah Westin plans to build a concrete walkway for her home during her vacation. The following schedule shows how project time will be allocated:
Hours
Purchase materials
5
Obtain rental equipment
2
Remove sod and level site
20
Build forms for concrete
10
Mix and pour concrete into forms
5
Level concrete and smooth
6
Let dry
24
Remove forms from concrete
2
Return rental tools
1
Clean up
4
a. Identify the value-added activities. How much of the total is value-added time?
b. Identify the non-value-added activities. How much total time is spent performing non-value-added activities?
c. Calculate the manufacturing cycle efficiency.