Three different companies have made their own estimates for a proposed project, which are shown in the

Question:

Three different companies have made their own estimates for a proposed project, which are shown in the accompanying table:
a. What is the AW for each of the three estimation conditions?
b. It is thought that the most critical factors are useful life and net annual cash flow. Develop a table showing the net AW for all combinations of the estimates for these two factors, assuming all other factors to be at their most likely values.