A future construction project has the following activity relationships and activity time estimates {i days]: I Leave 2decimal if not exact, do not round up, for example, 4.3263... will be kept as 4.32 1. Please calculate the "expected nish time'I and "variance\" for each activity. What is the expected nish time of activity C? What is the activity variance of activity 2. Use \"expected nish time" of each activity to constmct the network. What is the critical path 1 the project? {no space permitted between letters. acceptable format: WEED} What is the variance of project completion time? ' E}? What is the expected project completion time in clays? 3. Use \"expected nish time" to decide E5, EF. L5, LF of each activity. What is the L5 time of activity F? 'What is the slack time of activity D