3. (6 pts) A company is considering a project with the following cash flows. The external interest rate is 5%. Is this a good investment based on rate of return analysis and a MARR of 8%? Give the exact ROR, interpolate if necessary. Year Cash Flow 0 $50,000 1 -$30,000 2 $30,000 3 -$10,000 4 $80,000