A.高估 B.低估 C.忽略 D.不清楚
A.顯著高 B.不顯著高 C.等 D.低
A.X-1.96SE<XT≤X+1.96SE B.X-1.96SE≥XT C.X+1.96SE≤XT D.X-1.96SE≌XT≌X+1.96SE