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STATISTIK INFERENSIAL
FRIEDMAN TEST
Tara Callista 2012-070-228
Sheira Syafira 2012-070-236
Nimaz I. Dewantary 2012-070-262
Tasya Nur Diahsari 2012-070-266
Friedman Test
• Friedman test adalah prosedur statistik non-parametrik untuk
membandingkan lebih dari dua sample yang saling berhubungan.
• Data yang dianalisis adalah data ordinal, sehingga jika data berbentuk
interval atau ratio sebaiknya dirubah dulu ke bentuk ordinal.
• Parametrik yang setara dengan uji test ini adalah ANOVA
• Uji friedman digunakan untuk membandingkan lebih dari dua sample
dependen
Asumsi
● Satu grup diukur pada 3 kondisi atau lebih
● Grup tersebut merupakan random sample yang diambil
dari populasi
● Dependent variablenya merupakan variable
ordinal, interval atau rasio
● Samples nya merupakan distribusi tidak normal
Perbedaan Wilcoxon dengan Friedman
Friedman
• Menilai partisipan dalam
dua atau lebih kondisi
yang berbeda
• Alternatif friedman pada
parametric adalah one-
way repeated-
measures ANOVA
Wilcoxon
• Menilai partisipan dalam
dua kondisi yang
berbeda
• Alternatif wilcoxon pada
parametric adalah
dependent t-test
(paired sample t-test)
Bentuk Hipotesis
Ho:
3 atau lebih sampel berpasangan berasal dari populasi yang sama
Ha:
3 atau lebih sampel berpasangan berasal dari populasi yang berbeda
RUMUS
If there are no ties from the rank:
n : jumlah baris, atau mata pelajaran
k : jumlah kolom, atau kondisi
RJ : jumlah dari jajaran dari kolom
If ranking value result in any ties:
CF : ikatan koreksi, (l / 4) nk (k + l) 2
Rij : peringkat sesuai dengan subjek j dalam
kolom i.
df= k-1
k is the number of groups.
MARI KITA LATIHAN :)
di buku non-parametrics hal. 81
Sample Friedman Test
(small data sample without ties)
p. 81
Sample Friedman Test
(small data sample with ties)
p. 84
Sample Friedman Test (large data samples without ties)
THANK YOU

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Ppt infer friedman test

  • 1. STATISTIK INFERENSIAL FRIEDMAN TEST Tara Callista 2012-070-228 Sheira Syafira 2012-070-236 Nimaz I. Dewantary 2012-070-262 Tasya Nur Diahsari 2012-070-266
  • 2. Friedman Test • Friedman test adalah prosedur statistik non-parametrik untuk membandingkan lebih dari dua sample yang saling berhubungan. • Data yang dianalisis adalah data ordinal, sehingga jika data berbentuk interval atau ratio sebaiknya dirubah dulu ke bentuk ordinal. • Parametrik yang setara dengan uji test ini adalah ANOVA • Uji friedman digunakan untuk membandingkan lebih dari dua sample dependen
  • 3. Asumsi ● Satu grup diukur pada 3 kondisi atau lebih ● Grup tersebut merupakan random sample yang diambil dari populasi ● Dependent variablenya merupakan variable ordinal, interval atau rasio ● Samples nya merupakan distribusi tidak normal
  • 4. Perbedaan Wilcoxon dengan Friedman Friedman • Menilai partisipan dalam dua atau lebih kondisi yang berbeda • Alternatif friedman pada parametric adalah one- way repeated- measures ANOVA Wilcoxon • Menilai partisipan dalam dua kondisi yang berbeda • Alternatif wilcoxon pada parametric adalah dependent t-test (paired sample t-test)
  • 5. Bentuk Hipotesis Ho: 3 atau lebih sampel berpasangan berasal dari populasi yang sama Ha: 3 atau lebih sampel berpasangan berasal dari populasi yang berbeda
  • 6. RUMUS If there are no ties from the rank: n : jumlah baris, atau mata pelajaran k : jumlah kolom, atau kondisi RJ : jumlah dari jajaran dari kolom If ranking value result in any ties: CF : ikatan koreksi, (l / 4) nk (k + l) 2 Rij : peringkat sesuai dengan subjek j dalam kolom i. df= k-1 k is the number of groups.
  • 7. MARI KITA LATIHAN :) di buku non-parametrics hal. 81
  • 8. Sample Friedman Test (small data sample without ties) p. 81
  • 9. Sample Friedman Test (small data sample with ties) p. 84
  • 10. Sample Friedman Test (large data samples without ties)