• 2022-06-05
    ‏对两样本均数比较的t检验,备择假设正确的是‍
    A: [img=95x23]1803bc41c5da880.png[/img]
    B: [img=95x23]1803bc41cda1a18.png[/img]
    C: [img=93x25]1803bc41d58b49e.png[/img]
    D: [img=103x26]1803bc41dcf6d02.png[/img]
  • 举一反三