Which activity is drawn in the incorrect position?

If a cost estimate assumes that 240 hours will be expended on a given activity, and the projected crew size expected to perform that activity is 5 personnel working and 8-hour workday, what is the calculated duration for the activity?

Using the "normal" schedule, theoretically construct a hammock for activities 2001 through 2004. What is the duration of the hammock?

At a minimum, periodic reporting must be done at what interval?

Theoretically construct a summary activity for activities 2001 through 2004. Using the "normal" schedule, what is the cost of the hammock?