(来学网)在同一总体中作样本含量相等的随机抽样,有99%的样本均数在下列哪项范围内
  • A.
    (来学网)±2.58Sx
  • B.
    (来学网)±1.96Sx
  • C.
    (来学网)μ±2.58σx
  • D.
    (来学网)μ±1.96σ
  • E.
    (来学网)μ±2.58Sx