Testing equality of variances for several normal populations

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Atıf İçin Kopyala

GÖKPINAR E., GÖKPINAR F.

COMMUNICATIONS IN STATISTICS-SIMULATION AND COMPUTATION, cilt.46, sa.1, ss.38-52, 2017 (SCI-Expanded)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 46 Sayı: 1
• Basım Tarihi: 2017
• Doi Numarası: 10.1080/03610918.2014.955110
• Dergi Adı: COMMUNICATIONS IN STATISTICS-SIMULATION AND COMPUTATION
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Sayfa Sayıları: ss.38-52
• Gazi Üniversitesi Adresli: Evet

Özet

In this study, we develop a test based on computational approach for the equality of variances of several normal populations. The proposed method is numerically compared with the existing methods. The numeric results demonstrate that the proposed method performs very well in terms of type I error rate and power of test. Furthermore we study the robustness of the tests by using simulation study when the underlying data are from t, exponential and uniform distributions. Finally we analyze a real dataset that motivated our study using the proposed test.