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Question 4 of supported browsers. 0.5 pts A research project is scheduled for implementation based on the network shown. The estimated activity times and manpower required for the research project is as indicated in Table 1. Activity Immediate Predecessors Activity Activity Expected Variance Time (te) Activity Standard Deviation Manpower Requirement (A) a Estimate Activity Times Months) a m b 4 8 12 8 12 16 4 6 8 1 2 3 6 8 16 2 3 4 46 14 25 8 B D E F G H (B) AB B D CE D F G (D) la (b) c) (d) e ( (c) (d) e (1) ACT A=3 ACT B = 6 ACT C=4 ACT D = 4 ACT E= 5 ACT F=3 ACT G= 3 ACTH=2 (G) (h) (h) Table 1 Calculate the activity expected time te the activity "B" in the given table. (B)