PLEASE CLEARLY LIST ANSWER AS A) B) C) D) E)

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) a b Immediate Predecessor(s) Activity Activity A Time (weeks) a m b Immediate Predecessor(s) A 9 13 7 9 10 11 12 11 B 4 17 D 6 10 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 B C D b) The expected completion time of the critical path weeks (round your response to two decimal nlanan weeks (round your response to two decimal b) The expected completion time of the critical path = places). weeks (round your response to The expected completion time of the path other than the critical path = two decimal places). c) The variance of the critical path = weeks (round your response to two decimal places). weeks (round your response to two decimal The variance of the path other than the critical path = places). d) If the time to complete the activities on the critical path is normally distributed, then the probability that the critical path will be finished in 22 weeks or less = (enter as a probability and round your response to two decimal places). e) If the time to complete the activities on the non critical path is normally distributed, then the probability that the non critical path will be finished in 22 weeks or less = (enter as a probability and round your response to two decimal places)