Question $3$: A systems analyst has many costs and benefits forecasting models available. Answer each of the following $431$ when the analyst must turn to one of the judgment methods? $3\mathrm{.}2$ List $5$ judgment methods and explain how each of them works $3\mathrm{.}3$ When historical data are available, the forecasting methods are categorized into conditional and unconditional List $3$ methods for each category and explain how each of them works.