A project superintendent is about to begin work on a freeway resurfacing project,which is comprised of the following five activities: What is the estimated standard deviation of the duration for activity E?
A)0 weeks
B)1 week
C)2 weeks
D)3 weeks
E)4 weeks

Question

A project superintendent is about to begin work on a freeway resurfacing project,which is comprised of the following five activities:  What is the estimated standard deviation of the duration for activity E?
A)0 weeks 
B)1 week 
C)2 weeks 
D)3 weeks 
E)4 weeks

Quizplus · Accepted Answer

The estimated standard deviation for activity E can be calculated using the formula: (optimistic duration - pessimistic duration) / 6. For activity E, the optimistic duration is 3 weeks and the pessimistic duration is 9 weeks. Plugging these values into the formula, we get: (9-3)/6 = 1. Therefore, the estimated standard deviation for activity E is 1 week. Therefore, the best choice is C.

A Project Superintendent Is About to Begin Work on a Freeway