I was able to solve questions 1 and 2. Please help with # 3 and #4. If you use TreePlan, also upload the Excel file containing the decision tree. If you drew the decision tree using the Word/PPT drawing tools, please incorporate the diagram as an appendix to your Executive Summary document.3. Findings and Conclusions (include summary of analysis results) Based on youranalysis, respond to the following: (a) Provide a recommendation for Seaside including their decision to employ the market researchservice and a recommendation that Seaside should follow if the survey is conducted.Included the expected return (profit) for the decision. (b) SENSITIVITY ANALYSIS 1: If the estimated revenue for the condominium sales was only$15 million (not $16 million), would your decision change? If so, how?(c) SENSITIVITY ANALYSIS 2: If the estimated revenue for the condominium sales was $15million AND the cost of the survey was $75K (not $50), would your decision change? If so,how? 4. For your management perspective, what other factors (notincluded in the model) need to be considered in making the recommendations? Do you agreewith the decisions from your quantitative analysis? Why or why not.