class wants to develop a new smart classroom using Program Evaluation and Review Technique (PERT). The objective is to be the first to design and market the most innovative smart classroom so as to capture the first mover advantage in the US education market. Dr. Cummings brilliant students have determined the following activities precedence relationships and time estimates in days for the project Activity Immediate Optimistic Time Most Likely Predecessors Pessimistis Time none 6 7 b 1 2 3 a 5 5 5 d b 7 9 b 2 8 cd 10 Tims 12 Question 4 (3 points) Saved 5 4 6 What is the expected variance of Activity A? 7 8 9 a) less than or equal to 0.5 days 10 Ob) greater than 0.5 but less than or equal to 10 day c) greater than 1.5 days d) greater than 1.0 but less than or equal to 1.5 days 4 5. 6 Question 5 (3 points) Saved What is the expected duration of Activity A? 7 8 9 G a) Less than or equal to 2 days 10 Ob) Greater than 4 but less than or equal to 6 days c) Greater than 2 but less than or equal to 4 days O d) Greater than 6 days