手法を比較

	ロバスト一標本t検定（トリム平均）	一標本t検定
分野	統計学	統計学
系統	Hypothesis test	Hypothesis test
提唱年	1970s–2000s	1908
提唱者	Rand R. Wilcox (extending Yuen's trimmed-mean approach)	Student (W. S. Gosset)
種類	Robust parametric mean comparison	Parametric mean comparison
原典	Wilcox, R. R. (2012). Introduction to Robust Estimation and Hypothesis Testing (3rd ed.). Academic Press. ISBN: 978-0123869838	Student (1908). The probable error of a mean. Biometrika, 6(1), 1–25.
別名	one-sample trimmed mean test, Yuen one-sample test, robust one-sample location test, trimmed mean t-test	single-sample t-test, one-group t-test, one-sample t, Student one-sample t-test
関連	4	3
概要	The robust one-sample t-test replaces the ordinary mean with a trimmed mean and the sample variance with a Winsorized variance to compare a population location against a hypothesized value. It retains the t-test decision framework while sharply reducing sensitivity to outliers and heavy-tailed distributions, making it reliable in real-world continuous data that deviate from normality.	The one-sample t-test is a parametric hypothesis test that determines whether the mean of a single sample differs significantly from a known or hypothesized population value. Derived from Student's (Gosset's) 1908 t-distribution, it assumes continuous, approximately normally distributed data and is one of the most fundamental tests in applied statistics.