If General Foundry saves $2000 for each week that the earliest completion time is reduced, which single option, if any, should Lester choose? And why? (10 points) ITimeEstimates(days) | ob(s 1 |2 @ la 1 E & & 9 1 J2 a. Construct the appropriate network diagram. (10 points) b. What is the critical path? (10 points) . What is the expected completion time for the project and what is the variance of project completion time? (Variance of project completion time equals to the sum of the variances of the critical activities) (20 points) e. s the probability that the project will take less than 20 days to complete larger than 50% or smaller than 50%? And why? (No need to calculate the probability) (10 points)