It is June 1, and popular recording star Chocolate Cube is planning to add a separate recording studio to his palatial complex in rural Connecticut. The blueprints have been completed, and the table...

It is June 1, and popular recording star Chocolate Cube is planning to add a separate recording studio to his palatial complex in rural Connecticut. The blueprints have been completed, and the table for problem 20 lists the time estimates of the activities in the construction project.

 a. Determine the expected completion time and the critical path for this project. Also determine the expected earliest and latest start and finish dates for each of the separate activities. (Assume the workers work seven days per week, including July Fourth and Labor Day.)

 b. Chocolate Cube has committed himself to a recording session beginning September 8 (99 days from now). What is the probability that he will be able to begin recording in his own personal studio on that date?

c. If his studio is not ready in 99 days, Chocolate Cube will be forced to lease his record company’s studio, which will cost $120,000. For $3500 extra, Eagle Electric, the company hired for the electrical installation (activity G), will work double time; each of the time estimates for this activity will therefore be reduced by 50%. Using an expected cost approach, determine if the $3500 should be spent.