• 2022-06-01
    两样本均数比较的检验,按0.05的检验水准,犯第一类错误的概率为( )。
    A: 0.05
    B: β尚未给出
    C: 0
    D: >0.05
    E: ≤0.05
  • A

    举一反三

    内容

    • 0

      下面元素中属于角元素的是( )。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/a84338df1066442f8fba407dc394bece.png"/>,<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/7e678f64cbf546518cb40807c9535ab4.png"/> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/aa9bbef6c95c4ab98e516d1cddf38a18.png"/> C: μ,γ D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/e0e21467446a4959af4b97dee57e99f5.png"/>,<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/58fb3862b2c5410d87a1fc88a68b969c.png"/>,<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/eb181846a1a24e7e8e6b12ec8151d557.png"/>

    • 1

      两个大样本均数比较的u检验, A: P<0.05 B: P<0.01 C: P>0.05 D: P=0.05 E: P<0.005

    • 2

      下列化合物中,属于芳香醇的是( )。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/bd968b6614554735b34bfc279c5d772c.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/6e41464b498a4c52b3f045647a129232.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/63bedd7ddf194421a3fbe2a4990ad80d.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/aa0a51c0dc7e44d7894063b3d84a7395.png" />

    • 3

      下列化合物中,不属于芳香杂环化合物的是( )。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/a024e8d480fb4118a97ea91ba159a3cf.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/72e704ca592d436fa897071fb9261b8d.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/7b7b51f20ff24a5798b3d77318b5d460.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/fb3c6ac56961413ea1eff2f9c8fad647.png" />

    • 4

      自然指数衰减函数e-at的拉氏变换为( )。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/8737eea8f9ab4b57956966b78c81457a.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/e2e3d66540944a6abef22331e994afd3.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/d1f05087cb5641e59f6be5245adf2af2.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202109/333ade86887d4e3aa44332086c758e09.png" />