On Using an Approximate Noncentral t-Distribution in Determining a One-Side Upper Limit for Future Sample Relative Reproducibility Standard Deviations
نویسندگان
چکیده
منابع مشابه
Sample size and power calculations using the noncentral t-distribution
Abstract. The standard formulas for sample size and power calculation, as implemented in the command sampsi, make use of a normal approximation to the t-distribution. When the sample sizes are small, this approximation is poor, resulting in overestimating power (or underestimating sample size). One particular situation in which this is likely to be important is the field of cluster randomized t...
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ژورنال
عنوان ژورنال: Journal of AOAC INTERNATIONAL
سال: 2007
ISSN: 1060-3271,1944-7922
DOI: 10.1093/jaoac/90.2.575