• 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]18037100d7c5899.png[/img]是样本均值,则显著性水平为α的拒绝域为
    A: [img=65x25]18037100e0cd0ca.png[/img]
    B: [img=75x27]18037100e9b8f79.png[/img]
    C: [img=79x25]18037100f28a155.png[/img]
    D: ‍[img=87x29]18037100fb1feb1.png[/img]
  • 举一反三