Question 3: PERT 1 (20 points) Given the data below: te= (to +4tm +tp)/6 \sigma=\left(t_{p}-t_{0}\right) / 6 Standard deviation for the path as a whole: \sigma_{\mathrm{puh}}=\left(\mathbf{V}_{\mathrm{p} \mathrm{um}}\right)^{1 / 2} a)

Draw the preceding diagram and find the critical path using tm: b) Determine the expected project duration based on the PERT analysis for activities on the critical path. c) What is the probability of completing this project in 95 days? (refer to "Support Document"folder for Z-table)