sample size

Q: Would different sample size for different questions affect the sampling error?

问: 个别题目的样本数目会否影响抽样误差?

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Effects of Sample Size and Sex Ratio on Various Genetic Diversity Measures with Microsatellite Markers

样本量和性比对微卫星分析中群体遗传多样性指标的影响

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Care must be taken in the interpretation of the chi-squared test, since it has low power in the ( common) situation of a meta-analysis when trials have small sample size or are few in number.

必须重视对卡方分析结果的解释，因为当试验只有很小的样本量或者数量极小时，通常情况下Meta分析具有较低的把握度。

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The ratio of sample size to population size.

抽样规模与人口规模的比率.

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Would different sample size for different questions affect the sampling error?

个别题目的样本数目会否影响抽样误差?

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An inadequate sample size, a biased sample, a non-unique concept, and scientific flaws in the study are common faults.

样本大小不足，有偏差的样本，非独特的观念和研究中的科学缺陷。

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The majority of catwalk shoes, like the clothes, are sample size, normally a size 40.

大部分的T台的鞋子都和衣服一样是同样的尺码，40码。

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Recovery of silver from silver manganite with chloride roasting cyanide leaching process are studied. The effects of sodium chloride addition, particle size of ore sample, roasting time, roasting temperature on recovery rare of silver are examined.

研究了以氯化焙烧-氰化浸出工艺从银锰矿中回收银，考察了氯化钠加入量、矿石粒度、焙烧时间、焙烧温度对银浸出率的影响。

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The results suggest that in order to estimate the confidence interval of the number of species and biomass, a larger sample size ( e.g. n ≥ 50) is needed.

结果说明，要估计一个变量的置信区间，需要有足够大的样本含量。

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Why does sample size for different questions vary in the same survey?

为什麽在同一项调查中,不同题目有不同样本数目?

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The sample size included is large in low-dose radiation epidemiology research with EPR dosimetry. And this is the first time to validate NWM using experimental method with large sample size.

这在将牙釉质EPR实验方法用于低剂量辐射流行病学的研究中，属于样本量较大的课题，也是是首次使用样本含量较大、直接测量的实验方法来验证归一化工作量方法。

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We'll have better numbers once the sample size is in the thousands.

当样本大小有几千号人时我们的数据将会更为准确.

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Sampling techniques and sample size requirements vary with the techniques used.

取样方法和取样多少的要求因所采用的测试方法而异.

词典精选例句

Regarding the sample size, since 1992 at slightly over 1, 000.

样本数目方面, 由1992年开始的有关即时调查的样本数目目标为1, 000个以上.

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" But in the end it has the same problem fossils have -- the sample size is very small. "

“ 但是,到头来它还是面临同样的问题, 化石 样品的规模实在太小了. ”

英汉非文学 - 生命科学 - 基因与寻祖

The large sample compartment gives you more fexibility in sample size.

大样品仓便于多种尺寸样品的测试.

网络文摘精选

Influence of Tensile Sample Size and Deformation at Length Direction on r-Value Measurement

拉伸试样尺寸与长度方向变形量对r值测量的影响

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Theory of Fisher Linear Discriminant Analysis for Small Sample Size Problem and Its Verification

小样本情况下Fisher线性鉴别分析的理论及其验证

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Can be custom styles and sample size, welcome new and old customers call letter consultation orders.

可来样订制款式和尺寸, 欢迎新老客户来电来函咨询订购.

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The correlation degrees between subjects in multi-subject sampling survey are discussed in three cases, in view of every condition, the relevant sample orgainzation and the calculating methods of target variable, sample size and sample error are put forward in this thesis.

本文将多主题抽样调查中各主题间的相关程度分成三类进行了讨论，针对每一种情况，提出了相应的抽样组织形式，目标量的估计方法，抽样单位数和抽样误差的控制方法。

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In strength property experiment, the sample size is 150×15×5 mm.

在强度实验中试件尺寸采用150×15×5毫米.

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Calculated at 95 % confidence level using full sample size.

有关误差数字均以95%置信水平及整体样本计算.

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Based on researches and tests, the sample size of 5 Hz HCA in Zhejiang University was determined.

在大量研究和试验基础上，确定了浙江大学5Hz空心圆柱仪的试样尺寸。

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Fine ceramics ( advanced ceramics, advanced technical ceramics)-sample preparation for the determination of particle size distribution of ceramic powders

细陶瓷颗粒粒度分布测定-样品的制备

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Table 1. Sources Code , Taxon , Collected site, Elevation, Sample size.

表一, 试验编号, 采样地点, 海拔高度与样本数目.

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The wide size range and high spatial resolution obtained with the multilayer gradient separation are especially important when the method is employed for analysis of an unknown sample without any information available.

利用有梯度分离的宽尺寸分布及高空间分辨率，有利于对没有任何信息未知样品进行分离。

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Sample Size: 3 sets of completed products with assembly instruction ( if applicable ) are recommended.

样品要求: 3套样品,包括说明书 ( 如适用 )

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The sample size would have to be quadrupled.

样本量必须增大三倍.

词典精选例句

Sample Size and Power Determination for Interval Test in Clinical Trial

临床试验中区间检验的样本量与检验效能估计

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While the study's sample size was small, the findings emphasize something we know all too well: Stress is bad for you.

尽管该研究样本很小，但结果却强调了我们不得不承认的一个事实：焦虑伤身。

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