aggregate processes are in _______. what is the best estimate for aggregate processes what is the aggregate level what is the aggregate level what is aggregate level which type of aggregate is known? what is the aggregate level for rma can the aggregate be used to make a forecast if weights are known in the past which i do you do the best forecast what is the level of aggregate which level does aggregate processes occur what is y_t what is x_t$ what is the aggregate level how many components is there in the aggregate model if aggregate level is known what is the aggregate levels which is an aggregate process? when weights are known the aggregate process is known when the aggregate level of an process is known