please use the Z values table to answer questions 1 to 5 without using Excel programs. Formulas done by hand and also an AON Network.

Thank you very much.

From Table A7.2, a Z value of 0.67 gives an approximate probability of 0.26, which is interpreted to mean there is about a 26 percent chance of completino the project on 1. Compute the expected time for each activity. 2. Compute the variance for each activity. 3. Compute the expected project duration. 4. What is the probability of completing the project by day 112 ? Within 116 days? 5. What is the probability of completing "Negotiate with unions" by day 90 ? 3. The expected times and variances for the project activities follow. What is the probability of completing the project in 25 periods