All of the following are weaknesses inherent in this estimating (Click to select) It requires good, realistic historical data It requires significant time to develop estimates If total cost estimate is off, all other costs will be off The project must be very similar to past projects for estimates to be useful Below is a project WBS with cost apportioned by percents. If the total project cost is estimated to be $601,000, what are the estimated costs for the following deliverables? (Round the final answer to the nearest dollar.) Router systems project 601000 Design Definition Implementation 10% 41% 49%, Obiectives Requirements Inputs Outputs Files Interfaces ProgramminglIn-house testing lCustomer testing and review 5% || 596 1139611 596 115961 10% || 1896 3896 11%, a. Design? b. Programming? c. In-house testing? All of the following are weaknesses inherent in this estimating approach EXCEPT: (Click to select) All of the following are weaknesses inherent in this estimating (Click to select) It requires good, realistic historical data It requires significant time to develop estimates If total cost estimate is off, all other costs will be off The project must be very similar to past projects for estimates to be useful Below is a project WBS with cost apportioned by percents. If the total project cost is estimated to be $601,000, what are the estimated costs for the following deliverables? (Round the final answer to the nearest dollar.) Router systems project 601000 Design Definition Implementation 10% 41% 49%, Obiectives Requirements Inputs Outputs Files Interfaces ProgramminglIn-house testing lCustomer testing and review 5% || 596 1139611 596 115961 10% || 1896 3896 11%, a. Design? b. Programming? c. In-house testing? All of the following are weaknesses inherent in this estimating approach EXCEPT: (Click to select)