Community Hospital has an auxiliary generator that is used when power failures occur. The generator is worn out and must be either overhauled or replaced with a new generator. The hospital has assembled the following information: If the company keeps and overhauls its present generator then the generator will be usable for four more years. If a new generator is purchased, it will be used for four years, after which it will be replaced. The new generator would be diesel-powered, resulting in a substantial reduction in annual operating costs, as shown above. The hospital computes depreciation on a straight-line basis. All equipment purchases are evaluated using a 10% discount rate. (Ignore income taxes.) Click here to view Exhibit 11B-1 and Exhibit 11B-2, to determine the appropriate discount factor(s) using tables. Required: 1a. Determine the net present value using the total-cost approach. (Use the appropriate table to determine the discount factor(s) and round final answers to the nearest dollar amount.) 1b. Should Community Hospital keep the old generator or purchase the new one? 2. Using the incremental approach, determine the net present value in favor (or against) purchasing the new generator. (Use the appropriate table to determine the discount factor(s) and round final answers to the nearest dollar amount.) Net present value