Sample Size Required for Estimating the Standard Deviation as a Per Cent of its True Value
نویسندگان
چکیده
منابع مشابه
Estimating the sample mean and standard deviation from the sample size, median, range and/or interquartile range
BACKGROUND In systematic reviews and meta-analysis, researchers often pool the results of the sample mean and standard deviation from a set of similar clinical trials. A number of the trials, however, reported the study using the median, the minimum and maximum values, and/or the first and third quartiles. Hence, in order to combine results, one may have to estimate the sample mean and standard...
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ژورنال
عنوان ژورنال: Journal of the American Statistical Association
سال: 1950
ISSN: 0162-1459
DOI: 10.2307/2280683