A simple sequential project (each task must be completed before the next one can begin) has the time estimates (in days) shown below: What is the probability that the project shown in Exhibit 15S-5 will be completed within 8.5 days? (Choose the closest answer.)
A)80 percent
B)20 percent
C)75 percent
D)5 percent

Question

A simple sequential project (each task must be completed before the next one can begin) has the time estimates (in days) shown below:  What is the probability that the project shown in Exhibit 15S-5 will be completed within 8.5 days? (Choose the closest answer.)
A)80 percent 
B)20 percent 
C)75 percent 
D)5 percent

Quizplus · Accepted Answer

z = (8.5 - 9)/.577 = -0.5/.577 = 0.867. F(z) = approximately 0.80 and 1 - F(z) = approximately 20 percent.

A Simple Sequential Project (Each Task Must Be Completed Before