**TI83F*  ðREG2ðîÞ*MEAN)VALUE)OF)X¯*?ÜX?Þ*FUT:)VAL:)OF)X¯*?ÜW?Þ*CONF:)LEVEL*?ÜR?*»0+X+bq2*^?"^qRƒ2+X+2T?b4¼1ƒbpXqb ƒbb C?b4¼1p1ƒbpXqb ƒbb D?bpbXY?bpbWZ?Þ*INT:)FOR)MEAN*?ÞYqTC+YpTC +3?Þ*PREDICTION)INT:*?ÞZqTD+ZpTD +3E