A project network has 6 activities. Activity A constrains (finish to start) activities C and D. Activity B constrains activities D and E. Activities C, D, and E together constrain activity F. Their durations and tractor requirement (resource) levels are (4, 5, 4, 5, 3, 2) and (1, 2, 2, 1, 2, 2) for each of the activities (A, B, C, D, E, F), respectively. Assuming only three tractors are available to the project and using the following heuristics: minimum slack, smallest duration, and then lowest ID number, please do the following: (a) develop a resource-constrained schedule in the loading chart,; (b) list the order in which the activities are scheduled; (c) identify critical activities after the schedule, and (d) identify the scheduled slack for each non-critical activity, after your scheduling. Use the above to answer questions 33 through 36. The project duration with the resource constraint is:

technology is the application of knowledge and tools to solve problems and perform tasks more efficiently. t/f

Suppose an economy consists of three sectors: energy (e), manufacturing (m), and agriculture (a). sector e sells 70% of its output to m and 30% to a. sector m sells 30% of its output to e, 50% to a, and retains the rest. sector a sells 15% of its output to e, 30% to m, and retains the rest.

Who is better at multi-tasking? in business, employees are often asked to perform a complex task when their atten-tion is divided (i.e., multi-tasking). human factors (may 2014) published a study designed to determine whether video game players are better than non–video game play-ers at multi-tasking. each in a sample of 60 college stu-dents was classified as a video game player or a non-player. participants entered a street crossing simulator and were asked to cross a busy street at an unsigned intersec-tion. the simulator was designed to have cars traveling at various high rates of speed in both directions. during the crossing, the students also performed a memory task as a distraction. two variables were measured for each student: (1) a street crossing performance score (measured out of 100 points) and (2) a memory task score (measured out of 20 points). the researchers found no differences in either the street crossing performance or memory task score of video game players and non-gamers. “these results,” say the researchers, “suggest that action video game players [and non-gamers] are equally susceptible to the costs of dividing attention in a complex task”