A solved PERT problem is detailed in the table below. The expected tirne and variance values and the critical activities are given in the table below. Answer the following questions by filling the blanks (WRITE YOUR ANSWERS TO 2 DECIMAL PLACES, DO NOT ROUND UP OR DOWN): a. The expected project completion time for this problem is and the standard deviation is weeks. 7 b. There is a 0.95 probability that the project will be completed by Activity Expected time Variance Critical? 9 0.57 Yes B 0.11 No C 7 0.25 No 0.56 Yes E 6 1.64 Yes 7 0.69 No G 3.42 Yes D 4 F 8