Please help solve this quantitative analysis problem.

3. A project was planned using PERT. The expected completion time of the project was determined to be 98 weeks. The variance of the critical path is 50 weeks. What is the probability that the project will be finished in 98 weeks? Interpretation: P(Project 110 weeks) Step 1. Convert weeks into z (standard normal). P(Project > 110 weeks) = P(z>(110-98)/50)=P(z> 1.70) Step 2. Look up at the Z table. z=1.70 corresponds to a probabilty of 0.95543 Conclusion: P(Project > 110 weeks) = 1 -0.95543 = 4.457% What is the probability that the project will take longer than 93 weeks? Interpretation: Step 1. Convert weeks into z (standard normal). Step 2. Look up at the Z table. Conclusion