# Dr. Nott is considering investing in a waste treatment plant. Returns depend on the size of plant and the market condition for the facility. From experience, Nott believes that a small size would yiel

Dr. Nott is considering investing in a waste treatment plant. Returns depend on the size of plant and the market condition for the facility. From experience, Nott believes that a small size would yield a \$500,000 return regardless of the market scenario. However, the success of a medium sized plant would depend on the market. A low market demand for waste treatment would bring a \$100,000 return. A medium market demand would yield a \$500,000 return, and a high demand would return \$800,000. While a large facility is much riskier, the potential return is much greater. With a high market demand, the large facility should return a million dollars. With a medium demand, the large facility will only return \$500,000. Also, Nott estimates that the large facility would be a big failure if there is a low demand for waste treatment. He estimates that he would lose approximately \$300,000 with a large treatment facility if demand was indeed low.

At present time, Dr. Nott estimates that the probability of a low demand for waste treatment is 0.28, the probabilities of a medium and high demand are 0.27 and 0.45, respectively. An economic survey may be performed to obtain more information and get a better feeling for the probability of a low, medium, or high demand market with the cost of \$50,000. The survey could result in only 2 possible indications of High and Low. Regards the historical data, given a high market demand, the probability of High: Low indication from the survey is 14:1. On the other hand, with a medium market demand, the probability of High: Low conclusion from the survey is 7:2. The probability of High: Low indication from the survey is 1:3.

a) Draw decision tree and advise Dr. Nott

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b) What is the value of EVSI and its efficiency?