A project has three variables: first cost, annual net benefit and life. There is no salvage value. You will need to determine which values are optimistic and which are pessimistic, as required. The firm uses an interest rate of 12 percent to evaluate engineering projects. Use each variable's estimated mean (compute using the formula in chapter 10) and then compute expected net present worth (10 points total). Show work in the body of the response or in the excel schedule submitted with the last question. First Cost Annual Net Benefit Project Life Amount status Amount status Amount status -400,000 ? 75,000 ? 10 ? -500,000 most likely 95,000 ? 15 most likely -750,000 ? 121,000 ? 26 ? "status" is either optimistic, most likely or pessimistic NNote: Expected Net Present Worth