可信区间估计中,可信度一般表示为

A . A．37％～63％ B . B．35％～65％ C . C．30％～70％ D . D．25％～75％ E . E．26％～74％

A . ρ±1.65Sp B . ρ±1.96Sp C . ρ±2.58Sp D . ρ±1.96S E . ρ±2.58S

A . P±2.58S B . P±1.96S C . P±1.96S D . P±2.58S E . X±1.96S

A . A．均数大的样本 B . B．均数小的样本 C . C．标准差小的样本 D . D．标准误大的样本 E . E．标准误小的样本

A . α B . 1-α C . β D . 1-β E . 以上均不是

A . 37％～63％ B . 35％～65％ C . 30％～70％ D . 25％～75％ E . 26％～74％

A . p±1.65S B . p±1.96S C . p±2.58S D . p±1.96S E . p±2.58S

A . p±1.65S B . p±1.96S C . p±2.58S D . p±1.96S E . p±2.58S

A .https://assets.asklib.com/psource/2015092210271490529.jpg ±1.96SB .https://assets.asklib.com/psource/2015092210281221133.jpg C .https://assets.asklib.com/psource/2015092210271490529.jpg ±1.96σhttps://assets.asklib.com/psource/2015092210271490529.jpg D .https://assets.asklib.com/psource/2015092210281763233.jpg E .https://assets.asklib.com/psource/2015092210271490529.jpg +1.96Shttps://assets.asklib.com/psource/2015092210271490529.jpg

A . p±1.65S B . p±1.96S C . p±2.58S D . p+1.96S E . p±2.58S

A . p±1.96s B . p±1.96σ C . p±2.58σ D . p±1.96

A．α B．1-α C．β D．1-β E．估计误差的自由度

A．可理解性要求 B．最优化要求 C．可靠性要求 D．效益性要求