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Part $1$

Dr$.$ Lori$$ Baker, operations manager at Nesa$$ Electronics, prides herself on excellent$$ assembly$-$line balancing. She has been told that the firm needs to complete

$9090$

instruments per

$2424-$hour

day. The$$ assembly$-$line activities$$ are:

$$

Task

Performance

Time$($mins$)$

Predecessors

Task

Performance

Time$($mins$)$

Predecessors

A

$44$

minus$$

G

$55$

F

B

$66$

minus$$

H

$77$

$$D$,$ E

C

$88$

A

I

$22$

H

D

$77$

$$A$,$ B

J

$77$

E

E

$33$

B

K

$33$

$$G$,$ I, J

F

$44$

C

This exercise only contains parts$$ b$,$ c$,$ d$,$ e$,$ f$,$ and g$.$

Part $2$

$$b$)$ For the given daily

$(2424-$hour$)$

production rate of

$9090$

$$units$,$ the highest allowable cycle time$=$

$1616$

minutes

$($enter

your response as a whole

number$).$

Part $3$

$$c$)$ If the cycle time after allowances is given as

$1010$

$$minutes$,$ then the effective daily

$(2424-$hour$)$

production rate$=$

$144144$

units $($enter your response as a whole

number$).$

Part $4$

$$d$)$ For the given

$1010-$minute

cycle time after$$ allowances, the theoretical minimum number of workstations$=$

$66$

$($round your response up to the next whole$$ number$).$

Part $5$

$$e$)$ Using the longest assigned task time of all of the workstations and

$66$

$$workstations$,$ the operating efficiency of the assembly line$=$

enter your response here$\%$

$($enter your response as a percentage rounded to two decimal$$ places$).$