For all the site subtypes, it was found that the minimum sample size of 30 to 50 sites, as recommended by the HSM, is insufficient to achieve the desired accuracy. Moreover, the sample sizes required for estimated calibration factors to lie within 5% of the actual calibration factors is ...
For all the site subtypes, it was found that the minimum sample size of 30 to 50 sites, as recommended by the HSM, is insufficient to achieve the desired accuracy. Moreover, the sample sizes required for estimated calibration factors to lie within 5% of the actual calibration factors is ...
Similar results were obtained using relative precision errors. Conclusion BMD precision studies using a sample size of 30 are insufficient to reliably characterize precision error or change during clinical monitoring. 展开 关键词: Bone densitometry Dual energy X ray absorptiometry Osteoporosis Precision ...
[translate] aDIMENSIONS WITH ASTERIK MUST MEET A MINIMUM CPK OF 1.33 WITH AMINIMUM SAMPLE SIZE OF 25 PIECES. 维度与ASTERIK必须遇见最小限度CPK于1.33以AMINIMUM 25个片断的样本大小。 [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 西班牙语翻译 葡萄牙语翻译 意大利语...
If you are dealing with a population proportion instead of a population mean, you should use instead ourminimum required sample size calculator for proportions. Why is 30 the minimum sample size? That convention refers to a different situation: it refers to the usual minimum sample size required...
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We show that conventional tests for comparing proportions of affected subjects are still valid with this design; we give a formula for computing the minimum sample size required to detect a given degree of aggregation measured by the intracluster correlation coefficient, which can be estimated very ...
Distribution of study designs by year of publication Full size image The final literature sample consisted of 23 journal articles and eight gray literature sources. Participants in the included literature were refugees, asylum seekers or migrants, and other key informants. The majority of the study ...
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摘要: Minimum sample size is defined as the minimum number of individuals necessary to estimate with reasonable precision, mean and variance of seedlings and their clones of inter-varietal progeny population in sugarcane (sach.sp.) through simulation techniques....