operations

Chapter 15 Problems

16. Barb's Beach Bar operates seven days per week. Barb uses only full-time employees and wants each employee to have two consecutive days off each week. She believes that she needs a minimum of three employees on Monday, Tuesday, Wednesday, Thursday, and Sunday. On Friday and Saturday, she believes that she needs six employees. Develop a workforce schedule for Barb.

18. Marvin's Beach Cleaners is responsible for keeping the beach clean. Marvin estimates that he needs a minimum of two people on Monday; three people on Tuesday and Sunday; four people on Wednesday and Thursday; and five people on Friday and Saturday. Contractually, Marvin is required to give each employee two consecutive days off during the week. Develop a workforce schedule for Marvin to use.

20. Cathy's Coney Islands operates seven days per week. Demand is relatively constant during the week and tails off on the weekend. She estimates that she needs five employees Monday through Friday, and two employees on Saturday and Sunday. She is committed to giving each employee two consecutive days off during the week. Develop a workforce schedule for Cathy.

22. Bill's Bar & Grill is open seven nights a week. Business is busiest on Thursday, when there is a concert in the park across the street. Bill wants a workforce schedule that allows each employee two consecutive days off each week. He believes that he needs four employees every day except on Thursday, when he believes he needs six employees. Develop a workforce schedule for Bill.

Chapter 16 Problems

Use the following project information for Problems 1 and 2. (Chart link)

http://proquestbus.safaribooksonline.com.ezproxy2.apus.edu/getfile?item=MjFzNjk3MS9kYXJlOTh0c2FjaXAxL20vMTJzNzhnMHBqMmVlcy80cC1pYXQwL21nNjFnLnM-

1. Construct a network diagram using AON notation.

2. Using the network diagram constructed in Problem 1, (a) Calculate the completion time for the project.
(b) Determine which activities are included on the critical path.

3. Use the following project information for Problems 4 through 8.


4. Using the information given, construct a network diagram using AON notation.

5. Using the information given, calculate the expected time for each of the project activities.

6. Using the information given, calculate the variance for each of the project activities.

7. Using your results from Problems 4 and 5, (a) Calculate the completion time for this project.
(b) Identify the activities included on the critical path of this project.

Using your results from Problem 6, (a) Calculate the probability that the project will be completed in 38 weeks.
(b) Calculate the probability that the project will be completed in 42 weeks.

8. Using the information given and the project completion weeks. time calculated in Problem 9(a), reduce the completion time of the project by 3 weeks in the most economical way.