Journals / Tarım Bilimleri Dergisi / 2002 / Cilt: 8 - Sayı: 1

The investigation of Barlett and Levene' s test statistics in terms of type I. Error rates in small samples

Küçük örneklerde Barlett ve Levene test istatistiklerinin I. Tip hata bakımından incelenmesi

Pages
51–58
Publication Date
2022-10-17
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

As a result, It was emphasised that Bartlett's test is better

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, It was aimed that the investigation of Bartlett and Levene' s test statistics in terms of Type I error rates (a = 0.50, 0.25, 0.20, 0.15, 0.10, 0.05 and 0.01) in small samples.
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Key Findings & Data:For this, samples had 3 and 4 treatment groups were drawn from a normal N(0.1) population and balanced (equal) sample sizes were increased from 2 to 30.
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Conclusion & Impact:As a result, It was emphasised that Bartlett's test is better
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, It was aimed that the investigation of Bartlett and Levene' s test statistics in terms of Type I error rates (a = 0.50, 0.25, 0.20, 0.15, 0.10, 0.05 and 0.01) in small samples. For this, samples had 3 and 4 treatment groups were drawn from a normal N(0.1) population and balanced (equal) sample sizes were increased from 2 to 30. In these samles, Type I error rates were obtained empirically. In order to obtain Type I error rates, 100000 replications were done for each sample sizes. In addition, the critical values of Bartlett and Levene's test statistics at a = 0. 05 ve 0.01 Type I error levels were obtained from 1000000 replications for each sample sizes. As a result, It was emphasised that Bartlett's test is better

Özet

Bu çalışmada, Bartlett ve Levene test istatistiklerinin I. Tip hata bakımından incelenmesi amaçlanmıştır. Bu amaçla; normal dağılım N(0,1) gösteren populasyondan 3 ve 4 gruplu örnekler alınmış ve örnek genişliği her grupta eşit olacak şekilde 2' den başlatılarak 30' a kadar artırılmıştır. Bu örneklerde kararlaştırılan I. Tip hata; a = 0.50, 0.25, 0.20, 0.15, 0.10, 0.05 ve 0.01 olduğunda, Bartett ve Levene test istatistikleri için gerçekleşen I. Tip hatalar ampirik olarak elde edilmiştir. Bunun için her örnek genişliğinde 100000 deneme yapılmıştır. Buna ilaveten a = 0. 05 ve 0.01'deki Bartlett ve Levene istatistiklerinin kritik değerleri de belirlenmiştir. Bu değerlerin belirlenmesi için 1000000 deneme yapılmıştır. Sonuçta, Bartlett testinin I. Tip hata bakımından daha iyi olduğu vurgulanmıştır.

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Cite This Article

GÜRBÜZ, F., KESKİN, S. (2022). The investigation of Barlett and Levene' s test statistics in terms of type I. Error rates in small samples. Tarım Bilimleri Dergisi, Cilt: 8 - Sayı: 1, 51–58. https://ajindex.com/articles/595437

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