Confidence Interval (Noob here, so please bear with me!)
So I have this question:
A client wants me to find a budgetary estimate for a project in such a way that the final cost of the finished project will fall between -15% and +25% of that initial budgetary estimate. There are about 52 different components of the project and I can estimate the budget for each component within a certain range. (for example, I can say that item 1 will cost between $1000 and $1150, Item 2 between $1500 and $1800, and so on.) How do I do this?