PERBANDINGAN KUASA WILCOXON RANK SUM TEST DAN PERMUTATION TEST DALAM BERBAGAI DISTRIBUSI TIDAK NORMAL

Authors

  • Resti Mustika Sari
  • Yudiantri Asdi
  • Ferra Yanuar

DOI:

https://doi.org/10.25077/jmu.3.4.139-146.2014

Abstract

Kuasa dari suatu uji statistik adalah peluang menolak hipotesis nol kalau
hipotesis nol tersebut salah. Simulasi dengan menggunakan software R dilakukan untuk
membandingkan kuasa Wilcoxon Rank Sum Test dan Permutation Test untuk membandingkan dua nilai tengah populasi yang dibangkitkan dari distribusi Uniform, Eksponensial, Log Normal dan Weibull. Hasil simulasi data menunjukkan bahwa pada sebaran
Uniform uji yang lebih baik adalah Permutation Test. Untuk sampel menengah dan
sampel besar pada distribusi Eksponensial, Weibull dan Log-Normal uji yang lebih baik
adalah Wilcoxon Rank Sum Test. Sedangkan untuk sampel berukuran kecil yang berasal
dari distribusi Eksponensial, Weibull dan Log-Normal tidak bisa ditentukan mana uji yg
lebih baik diantara Wilcoxon Rank Sum Test dan Permutation Test.

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Published

01-12-2014

Issue

Vol. 3 No. 4 (2014)

Section

Articles

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