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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: Ear Hear. 2011 Jul-Aug;32(4):468–484. doi: 10.1097/AUD.0b013e31820dd3f0

Table 11.

95% confidence intervals of estimates of traditional and robust statistical parameters for simulations of various types of distributions.

Statistic Traditional statistic True value Estimate for normal distribution Estimate for mixed normal, heavy tailed Estimate for mixed normal, asymmetric
Mean 0 (−.13, .12) (−.22, .23) (.29, 1.76)
Trimmed mean Mean 0 (−.14, .13) (−.14, .14) (.04, .29)
S.D. 2 (1.91, 2.08) (3.30, 4.06) (2.80, 32.63)
Sn S.D. 2 (1.88, 2.11) (2.14, 2.41) (1.84, 2.09)
S.E. .06 (.06, .07) (.10, .13) (.09, 1.03)
Winsorized S.E. S.E. .06 (.06, .07) (.08, .09) (.06, .07)