Since there are so many different reasons that cause the prolonged ORTOT, exactly how many turnovers can be improved by either hiring an AA or two SPTs is not certain. Your team estimated, for the best-case scenario, 1500 turnovers will be improved by hiring an AA, 1600 turnovers will be improved by hiring two SPTs. For the most likely scenario, 1200 turnovers will be improved by hiring an AA, 1100 turnovers will be improved by hiring two SPTs. For the worst-case scenario, only 500 turnovers will be improved by hiring an AA, 900 turnovers will be improved by hiring two SPTs. Your hospital makes it very clear that you can only either hire an AA or two SPTs but not both. The probability of best-case scenario, most likely scenario, and worst-case scenario are 0.2, 0.65, and 0.15.

Construct a decision tree to represent this decision. Make sure you put all the relevant information on the decision tree and clearly explain your calculation. Based on your decision tree analysis, which decision alternative you should choose and why?