podataka pretpostaviti

Third, researchers would like to know if the male students, the average scores of different aspects of the examination. The examination for the 15 boys and 15 girls. Their results in the following table:

Boys r 58 69 82 75 65 60 75 50 82 55 76 70 62 66 51

Girls 68 69 66 58 85 86 62 89 81 73 72 72 62 68 50

On the basis of these data assume that the scores of boys and girls. Please ranked 1-15? Let α = 0.01 and 0.5.

α = 0.01. Please cut will be between whether or not there is cross-impact

1 Answer

Rating
  • 玉米
    Lv 4
    1 decade ago
    Favorite Answer

    rank123456789101112131415

    Boys828276757570696665626058555150

    Girls898685817372726968686662625850

    排列後為成對樣本

    採用t分配檢定

    α = 0.01

    μB:男生的平均分數,μG:女生的平均分數

    H0:μB=μG

    H1:μB≠μG

    di=Xi-Yi,dbar=sum(Xi-Yi)/n,Sd=(sum(di)^2/n)^0.5,t(n-1)=dbar/(Sd/(n)^0.5)

    dbar=-4.333,Sd=2.844

    t(14)=-4.333/(2.844/(15)^0.5)=5.90>t(0.005,14)=2.977

    ∴reject H0 ,男生的平均分數與女生的平均分數顯著差異。

    Source(s): me,統計學
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