= Homework: As... Question 24, Problem 3.... Part 2 of 6 HW Score: 74.41%, 24.56 of 33 points Points: 0.17 of 1 Save Ross Hopkins, president of Hopkins Hospitality, has developed the tasks, durations, and predecessor relationships in the following table for building new motels. Time (weeks) Time (weeks) m b Immediate Predecessor(s) Activity a a m b 6 8 Activity G H 3 5 1 12 23 16 B C D 1 1 5 9 14 6 3 9 2 1 5 6 1 Immediate Predecessor(s) C, E F F D, G, H I, J A A A B C, E 5 12 5 9 8 J K E 1 4 1 4 F 9 21 a) The expected (estimated) time for activity C is 13.5 weeks. (Round your response to two decimal places.) b) The variance for activity C is weeks. (Round your response to two decimal places.) Four Squares Productions, a firm hired to coordinate the release of the movie Pirates of the Caribbean: On Stranger Tides (starring Johnny Depp), identified 16 activities to be completed before the release of the film. The appropriate data are shown in the following table: Time (weeks) Time (weeks) a m b Immediate Predecessor(s) Activity a m b Activity A B J K L C D 1.0 2.0 9.0 4.0 2.0 4.0 3.0 3.0 2.0 3.5 12.0 5.0 4.0 7.0 5.0 7.7 4.0 6.0 15.0 7.0 5.0 9.0 6.5 10.0 10.5 3.0 2.0 3.0 5.0 11.0 4.0 4.0 4.0 6.0 12.3 7.0 6.0 Immediate Predecessor(s) D E F, G, H J, K, L 14.0 6.0 6.0 6.0 7.5 15.0 9.0 10.0 M E F A 8.0 N O G B 3.0 4.0 I, M H P N This exercise contains only parts a and c. weeks in advance of the film's release as this is the length of the project. (Round your response a) Four Squares should start preparing for the release of the movie to two decimal places.) Homework AS... Save Part 5 of 10 Points: 0.43 of 1 The estimated times and immediate predecessors for the activities in a project at Howard Umrah's retinal scanning company are given in the following table. Assume that the activity times are independent. Time (weeks) Time (weeks) b Immediate Predecessor(s) a m a m b Activity A B Immediate Predecessor(s) A 10 11 Activity C D 9 4 9 11 11 12 16 5 9 B This exercise contains only parts a, b, c, d, and e. a) Based on the activity time estimates, the expected times and variance for each of the activities are (round your response to two decimal places): Expected Time Activity Variance A 10.0 0.11 B 11.3 4.00 9.33 0.11 D 8.67 1.00 b) The expected completion time of the critical path = weeks (round your response to two decimal places)