• 2022-06-15
    若总体X~N(μ, 1),检验假设H0: μ=0, H1: μ≠0,已取得容量为9的样本,[img=15x22]18032d064fede36.png[/img]是样本均值,则显著性水平为α的拒绝域为
    A: [img=65x25]18032d0658b1566.png[/img]
    B: [img=75x27]18032d066102627.png[/img]
    C: [img=79x25]18032d066944ae8.png[/img]
    D: ‍[img=87x29]18032d0671c9abb.png[/img]
  • 举一反三