3. Develop a decision tree for a manufacturing company, X. The company can design parts by itself from the beginning or buy the readily available parts and modify it to meet the local needs. If the parts are to be built from scratch, there is a 75% probability that the job will be difficult. Using estimation techniques, the project planner projects that a difficult development effort will cost 300,000 BHD and a simple development effort is estimated to cost 225,000 BH. If the organization will buy an available part the probability for minor changes to be addressed is 25% and this is estimated to cost 175,000 BHD. On the other hand, the major changes to be addressed is estimated to cost 325,000. (4 pts)