若增大观察例数至129名,测得平均出生体重3.29kg,标准差0.54kg,则计算总体均数95%可信区间的公式是

A、3.29±1.96×0.54
B、3.29±1.96×0.54/[img=~/QImg/2013-10-14-11-38-02/image084.gif]
C、3.00±1.96×0.54/[img=~/QImg/2013-10-14-11-38-02/image084.gif]
D、3.29 t0.05,11×0.54
E、3.29 t0.05,11×0.54/[img=~/QImg/2013-10-14-11-38-02/image085.gif]