Read the case study and answer the questions that follow. Barbara just received the good news: She was assigned as the project manager for a project that her company won as part of competitive bidding, though she had not participated in the bidding process. Barbara is somewhat pessimistic and believes that accepting the estimates as they were submitted in the proposal is like playing Russian roulette. As such. Barbara prefers to review the estimates. One of the most critical work packages in the project was estimated at twelve wecks using one grade 7 cmployee full time. Barbara had performed this task on previous projects and it required one person full time for fourteen weeks. Barbara asked the estimating group how they arrived at this estimate. The extimating group responded that they used the three-point estimate where the optimistic time was four ss. the most likely time was thirleen weeks, and the pessimistic time was sixteen weeks. package could ever be completed in four weeks would be for a very small project nowhere near the complexity of Barbara's project. Therefore. the estimating group was not considering any colnplearity factors when using the three-point estimate. Had the estimating group used the triangular distribution where each of the three estimates had an equal likelihood of occurrence, the linal estimate would have been thirteen weeks. This was closer to the fourteen weeks that Barbara thought the work package would take. While a difference of I week seems small, it could have a serious impact on Barbara's project and incur penalties for late delivery. Barbara was now still confused and clecided to talk to projects. discussions with Barbara, Peter made the following comments: I have scen estimating data bases that include this type of work package and they all estimate the work package at about 14 weeks. I do not understand why our estimating group prefers to use the three point estimate. "Does the typical data base account for project complexity when considering the estimates?" asked Barhara. Peter responded: Some data bases have techniques for considering complexity. but mostly they just assume an average complexity level. When complexity is important. as it is in our project. analogy estimating would be better. Using analogy estimating and comparing the complexity of the work package on this project to the similar works packages I have completed. I would say that 16-17 weeks is closer to reality, and let's hope 1 do not get removed from the project to put out a fire somewhere else in the company. That would be terrible. It is impossible for me to get it done in 12 it worse Barbara then asked Peter one more question: Peter. you are a grade 9 and considered as the subject matter expert. If a grade 7 had been assigned, as the estimating group had said, how long would it have taken the grade 7 to do the job? "Probably about 20 weeks or so" responded Peter Comment on the following aspects of the case study: a How many different estimating techniques were discussed in the case? 14 MARK b Explain three estimating techniques