2. Problem 4.3 (a) The network of the Deluxe model45 6 18
Punch
(base)
Form
(base)
S_assemble
(base) 10 12 36
Start
Separate
Assemble
Inspect 30 12
Punch
(roof)
Form
(roof)
TFT_Deluxe_Path1 = = 127

3. Problem 4.3(b)
TFT for 25% Deluxe and 75% standard
33.75 6
14.25
Punch
(base)
Form
(base)
S_assemble
(base) 10
10.5 36
Start
Separate
Assemble
Inspect 24 12
Punch
(roof)
Form
(roof)
TFT_Deluxe_Path1 = = 110.5
The flow time efficiency is 110.5/4800 = 2.3%

4. Problem 4.3 (alternative way for part b using the network of the Standard model)
The network of the Standard model is as follows 30 6 13
Punch
(base)
Form
(base)
S_assemble
(base) 10 10 36
Start
Separate
Assemble
Inspect 22 12
Punch
(roof)
Form
(roof)
TFT_Standard_path1 = = 105
TFT_Deluxe = 127
0.75× ×127 = 110.5