Operations Management - Applications Projects

A major source of food revenue at Boston Celtics games is the sales of hot dogs. The hot dog sales are

A major source of food revenue at Boston Celtics games is the sales of hot dogs. The hot dog sales are shown by game quarter for the last four complete seasons.
Quarter Year 1 Year 2 Year 3 Year 4
1 328 338 368 388
2 357 367 377 397
3 363 373 386 402
4 416 424 442 480
Calculate the overall CMA for Quarter 4.
Jean Walker is making plans for spring break at the beaches in Florida. In applying the techniques she learned in her Quantitative Methods class, she has identified the activities that are necessary to prepare for her trip. The following table lists the activities and the immediate predecessors.
Activity Immediate Predecessors
A -
B -
C A
D B
E C, D
F A
G E, F
Draw the network for this project.
Calculate the expected times (t) and variances for the activities.
Most Expected

Optimistic Probable Pessimistic Time Variance
Activity a m b
A 1 3 5
B 2 7 12
C 1 4 7

D 1 2 3
E 3 4 11
F 4 5 12
G 1 3 5

Calculate the Earliest Start and Earliest Finish Times for the network

Determine the Critical Path through the network.

Calculate the Latest Start and Latest Finish times for the network

Complete the following table based on your calculated ES, EF, LS and LF times. Calculate the Slack for each activity. Show by Yes or No which activities are on the Critical Path .

On
Slack Critical
Activity ES EF LS LF LS-ES Path ?
A

B
C
D
E
F
G