**TI83F* ? .REG2.,*1)j)MEAN)INT:*+*2)j)PRED:)INT:*?C?Cj1??*MEAN)VALUE)OF)X*?X??*FUT:)VAL:)OF)X*?W??*CONF:)LEVEL*?R?4]+]+1?*0+X+bq2*^?"^qR2+X+2T?b41bpXqb bb E?b41p1bpWqb bb D?bpbXY?bpbWZ??Cj1??*MEAN)INTERVAL*?YqTE?YpTE??*PREDICTION)INT:*?ZqTD?ZpTD??\