Final answer:
To calculate the annual worth of the projects using the Annual Worth Method, calculate the present worth of each project's cash flows, and select the project with the higher value. In this case, Project Zeta is the best project.
Step-by-step explanation:
To calculate the annual worth of the projects using the Annual Worth Method, we need to calculate the present worth of each project's cash flows and then compare them.
For Project Zeta:
- Year 0: $(362)
- Year 1: $138
- Year 2: $312
- Year 3: $354
- Year 4: $172
For Project Omega:
- Year 0: $(230)
- Year 1: $120
- Year 2: $100
- Year 3: $200
- Year 4: $120
Next, we calculate the present worth of each cash flow using the MARR of 10%:
- For Project Zeta, the present worth is $(362) + $138/(1+0.10) + $312/(1+0.10)^2 + $354/(1+0.10)^3 + $172/(1+0.10)^4 = $667.27
- For Project Omega, the present worth is $(230) + $120/(1+0.10) + $100/(1+0.10)^2 + $200/(1+0.10)^3 + $120/(1+0.10)^4 = $601.58
Finally, we compare the present worth of both projects and select the one with the higher value. In this case, Project Zeta has a higher present worth of $667.27, so it is the best project.