c. What is the probability of completion in 20, 21, and 22 weeks? Use Appendix A to answer the question. Do not round intermediate calculations. Round your answers to four decimal places.Probability of completion in 20 weeks: Probability of completion in 21 weeks: Probability of completion in 22 weeks: Compute expected times and variances for each activity. Round your answers for the expected times to nearest whole number and for the variances to two decimal places.ActivityABсDEFGActivityAb. Develop an activity schedule for this project using early and late start and finish times and compute activity slack time. If your answer is zero, enter "0". Round youranswers to the nearest whole number.BсDEFMeanGImmediatePredecessor(s)AAB, CBVarianceC, D, EETime(months)EarliestStartEarliestFinishLatestStartLatestFinishSlack A competitor of Kozar International, Inc. has begun marketing a new instant-developing film project. Kozar has had a similar product under study inits R&D department but has not yet been able to begin production. Because of the competitor's action, top managers have asked for a speedup ofR&D activities so that Kozar can produce and market instant film at the earliest possible date. The predecessor information and activity timeestimates in months are shown in the following columns.ActivityAa. Choose the correct project network.The correct network is -Select-CDBсDEFGImmediatePredecessor(s)AAB, CBC, D, EEOptimisticTime1313.546.55Most ProbableTime1.542557.59PessimisticTime5536.51211.513

A project has 7 activities with 3 time estimates in weeks:ActivityOptimistic TimeMost Likely TimePessimisticTime Immediate PredecessorA11.55NoneB345AC123AD3.556.5B,CE4512BF6.57.511.5C,D,EG5913E"Please note in Part(c) the duration is mentioned in weeks whereas in the question it is mentioned in months. Check the question or provide the month to week conversion parameter. Also, provide the Appendix A to answer part(c). Kindly repost the question with correct and complete information for part(c) to get it answered."Since the options to choose from are not given in the question, we will draw the correct network diagram from the given information.A network diagram is the sequential diagrammatic presentation of the project activities.Taking the immediate predecessor for each activity, the network diagram will be prepared as below:Expected Activity duration need to be calculated for preparing the network diagram:ActivityOptimistic (O)Most Likely (M)Pessimistic (P)Expected Time (Mean)VarianceA11.55B345C123D3.556.5E4512F6.57.511.5G5913Forward Pass CalculationWe move from left to rightForward pass for activities calculates 2 values - Earliest Start (ES) and Early Finish (EF)ES for starting activities is always 0.EF = ES + DurationFor other activities, other than the starting activities, the ES is the maximum of the EF of its preceding activitiesBackward Pass CalculationWe move from right to leftBackward pass for activities calculates 2 values - Latest Start (LS) and Latest Finish (LF)LF for last activity is always same as its EF.LS = LF - DurationFor other activities, other than the starting activities, the LF is the minimum of the ES of its succeeding activitiesThe network diagram shows the precedence relationships, forward pass and backward pass:Slack is the amount of extra time available for an activity by which if that activity is delayed, it will not affect the project duration. It means the project will not get delayed. All activities of the critical path always have zero slack.The values are mentioned in the activity schedule below:ActivityImmediate PredecessorTime(Months)EarliestStart (ES)EarliestFinish (EF)LatestStart (LS)LatestFinish (LF)Slack(LS-ES)A-202020BA426260CA22411139DB,C56118132EB66126120FC,D,E8122013211GE9122112210a) The correct network diagram is:Mean & Variance Table:ActivityExpected Time (Mean)VarianceABCDEFGb) The activity schedule is given below:ActivityImmediate PredecessorTime(Months)EarliestStart (ES)EarliestFinish (EF)LatestStart (LS)LatestFinish (LF)Slack(LS-ES)A-202020BA426260CA22411139DB,C56118132EB66126120FC,D,E8122013211GE9122112210