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): b) The expected completion time of the project = V] Weeks (round your response to two decimal places). c) The project variance of completion time = weeks (round your response to two decimal places). d) If the time to complete the project is normally distributed, then the probability that the project will be finished in 23 weeks or less = (enter as a probability and round your response to two decimal places)