Question

In: Operations Management

LEE’s Electric Co. in Glassboro installs electrical fixtures at Rowan dormitories. LEE has been very concerned...

LEE’s Electric Co. in Glassboro installs electrical fixtures at Rowan dormitories. LEE has been very concerned with the amount of time (Weeks) that it takes to complete electric wiring jobs. Some of her workers are very unreliable. A list of activities and their possible time is given in the following table (a: optimistic time; m: most likely time; b: pessimistic time)

            Activity                       a          m         b          predecessor(s)

                 A                            4          6          8                      -

                 B                            2          3          4                      -

                 C                            1          2          3                      -

                 D                            6          7          8                      C

                 E                             2          4          6                   B , D

                 F                             6        10         14                  A , E

                 G                            2          3          4                   A , E

                 H                            7          8          9                       F

                 I                              3          6          9                      F

                 J                             5          6          7                   G , H

                 K                            6          7          8                      C

                 L                             6          8         10                   I , J      

Q1: Draw the appropriate PERT diagram.

Q2: Show ES, EF, LS, LF, and Slack time in the diagram above.

Q3: Identify the critical path and total completion time required to complete this project..

Q4: Determine the probability that LEE will complete the project

      (1) in 43 weeks or less, (2) more than 48 weeks, and (3) between 46 and 48 weeks.

Solutions

Expert Solution

keosha answered 6 months ago
Next > < Previous

Related Solutions

Case facts: Agua Fixtures Corporation has been supplying high-quality kitchen fixtures to its customers for several...
Case facts: Agua Fixtures Corporation has been supplying high-quality kitchen fixtures to its customers for several decades and uses a LIFO inventory system. Rapid increases in the cost of fixtures have resulted in inventory values substantially below current replacement cost. To bring its inventory carrying costs up to more reasonable levels, Agua Fixtures sold its entire inventory to Chandler Corporation and purchased an entirely new supply of inventory items from Persimmon Manufacturing. Aqua Fixtures owns common stock of both Persimmon...
Audio Co. Manages a chain of stores that sell audio systems. It has been very successful,...
Audio Co. Manages a chain of stores that sell audio systems. It has been very successful, but also many failures. The analysis of these failures has led it to adopt the policy of not opening a store unless they are reasonably sure that at least 15% of the students of the place have stereo systems with a cost of $ 1,100 or more. In a survey of 300 of the 2,400 students at a small arts school in the Midwest,...
L Co. has not been very profitable for the past three years. Additionally, a recently-ousted manager...
L Co. has not been very profitable for the past three years. Additionally, a recently-ousted manager purchased a substantial quantity of inventory earlier this year…inventory whose customer desirability has waned to some extent. As such, the inventory value has declined below its cost and two methods of handling the write-down are being discussed: showing the amount of the write-down ($3,000,000) as a line item loss on the income statement and showing the loss as part of cost of goods sold....
L Co. has not been very profitable for the past three years. Additionally, a recently-ousted manager...
L Co. has not been very profitable for the past three years. Additionally, a recently-ousted manager purchased a substantial quantity of inventory earlier this year…inventory whose customer desirability has waned to some extent. As such, the inventory value has declined below its cost and two methods of handling the write-down are being discussed: showing the amount of the write-down ($3,000,000) as a line item loss on the income statement and showing the loss as part of cost of goods sold....
L Co. has not been very profitable for the past three years. Additionally, a recently-ousted manager...
L Co. has not been very profitable for the past three years. Additionally, a recently-ousted manager purchased a substantial quantity of inventory earlier this year…inventory whose customer desirability has waned to some extent. As such, the inventory value has declined below its cost and two methods of handling the write-down are being discussed: showing the amount of the write-down ($3,000,000) as a line item loss on the income statement and showing the loss as part of cost of goods sold....
L Co. has not been very profitable for the past three years. Additionally, a recently-ousted manager...
L Co. has not been very profitable for the past three years. Additionally, a recently-ousted manager purchased a substantial quantity of inventory earlier this year…inventory whose customer desirability has waned to some extent. As such, the inventory value has declined below its cost and two methods of handling the write-down are being discussed: showing the amount of the write-down ($3,000,000) as a line item loss on the income statement and showing the loss as part of cost of goods sold....
L Co. has not been very profitable for the past three years. Additionally, a recently-ousted manager...
L Co. has not been very profitable for the past three years. Additionally, a recently-ousted manager purchased a substantial quantity of inventory earlier this year…inventory whose customer desirability has waned to some extent. As such, the inventory value has declined below its cost and two methods of handling the write-down are being discussed: showing the amount of the write-down ($3,000,000) as a line item loss on the income statement and showing the loss as part of cost of goods sold....
Mr. Lee, CEO of a company has been asked to quote a price for a special...
Mr. Lee, CEO of a company has been asked to quote a price for a special contract. The customer is not a current customer of the company, but Mr. Lee wants to try and win the contract as he believes that this may lead to more contracts in the future. As a result, he intends to quote a competitive price for the contract. The following information should be considered: 1. One of the company’s salesmen has been to visit the...
An electrical conductor has a net charge h. Explain that the electric field inside conductors equals...
An electrical conductor has a net charge h. Explain that the electric field inside conductors equals zero in the electrostatic case and show that the charge is distributed on the conductor surface.
Mobile Security, Inc. (MSI) has been an audit client of Leo & Lee, LLP for the...
Mobile Security, Inc. (MSI) has been an audit client of Leo & Lee, LLP for the past 12 years. MSI is a small, publicly traded aviation company based in Cleveland, Ohio, where it manufactures high-tech unmanned aerial vehicles (UAV), also known as drones, and other surveillance and security equipment. MSI’s products are primarily used by the military and scientific research institutions, but there is growing demand for UAVs for commercial and recreational use. MSI must go through an extensive bidding...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT