A machine costing $50,000 is expected to save W dollars per year for the next 5 years. The operating and Maintenance costs are X dollars per year. The salvage value at the end of 5 years is Y dollars. W, X, and Y are normal random variables with the following mean values and standard deviations: If the MARR is 8% compounded yearly, what is the probability that purchasing this machine would be a good decision