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相关差检验步骤演示

相关差检验步骤演示
几何画板及绘图内容加载中，请稍等……
2013-11-21 01:37
函数数列概率统计
所属专题 Statistics Step Through Applets
①本范例演示了相关差检验（匹配对设计）的运行步骤；②涉及核心数学概念包括统计推断、均值、样本标准差、显著性检验；③作图要点：使用了 GeoGebra 命令 Element, Length, Sequence, Mean, SampleSD, If 等，对象包括 Data13A, Data13B, Mean, StdDev 等；④适合高中及以上学生或统计学初学者学习相关差检验方法。

GeoGebra 命令及参数

  1. Element(DtSqA, DataSet) → DataA
  2. Element(DtSqB, DataSet) → DataB
  3. Length(DataA) → Size
  4. Element(ConfSeq, signif) → Confidence
  5. Element(LblALst, DataSet) → LblA
  6. Element(LblBLst, DataSet) → LblB
  7. Sequence(Element[DataA, k] - Element[DataB, k], k, 1, Size) → Diff
  8. Mean(Diff) → Xbar
  9. SampleSD(Diff) → StdDev
  10. If(Pvalue < α, 1, 0) → Cmpr
  11. If(Cmpr ≟ 1, "reject", "keep") → Dcsn
  12. If(Cmpr ≟ 1, "is", "is not") → ConStmt
  13. Element(StmtSeq, DataSet) → Stmt
  14. If(Pvalue < α, " < ", " ≥ ") → IneqSqn
  15. Sequence(Text[Element[DataA, k], (0.8, 6.5 - 0.6 * k)], k, 1, Size) → LstDtA
  16. Sequence(Text[Element[DataB, k], (2.1, 6.5 - 0.6 * k)], k, 1, Size) → LstDtB
  17. Sequence(Text[Element[Diff, k], (3.8, 6.5 - 0.6 * k)], k, 1, Size) → LstDiff