您要查找的是不是:
- large sample statistics 大样本统计
- Based on the statistics of a large sample of data, the Boltzmann constant is determined at a relative error of 4%. 基于对大量数据的统计分析,计算出了玻尔兹曼常量,与理论值的相对误差约为4%25。
- Evaluation of the Comparative Method of Two Large Sample Means. 两个大样本均数比较方法的评价。
- The test was standardized on a large sample of students. 这次测试以一大批被测学生为标准。
- Since in many situations the error term is not normally distributed, it is important to know the asymptotic properties (large sample properties), i.e., the properties of OLS estimator and test statistics when the sample size grows without bound. 由于在很多情形下误差项可能呈现非正态分布,了解OLS估计量和检验统计量的渐近性,即当样本容量任意大时的特性就是重要的问题。
- The concept is useful in assessing the large sample properties of econometric estimators. 在评价经济计量估算值的大规模抽样特征时,这是一个有用的概念。
- Inasmuch as statistical analyses require fairly large sample sizes, the cost of such a program becomes prohibitly high. 由于统计分析需要大量的试验数据,因此这个计划的费用是相当高的。
- The customers at the grocery stores represented a large sample of the Danish population, they said. 研究人员称,食品店顾客的饮食习惯在丹麦人口中具有普遍代表性。
- A new study is the first to establish a link between colic and depression using a large sample of women. 一项新的研究通过大量妇女的样本,首次建立了婴儿哭闹和母亲抑郁之间的关联。
- One-to-One Comparison (1-1) -- A statistical comparison of two sample statistics. The comparison determines if there is a difference between the sample statistics. 一对一比较 (1-1) -- 两个样本统计量之间的比较。由此可以决定样本统计量之间是否存在差异。
- Conclusion: Psychiatrical clinic trials should be designed according to the GCP protocols with large sample size. 结论:精神科药物疗效研究应遵循GCP原则,加强大标本、设计合理的高水平研究;
- Results Simulation study shows that parameters estimations are approximately unbiased in MCMC when large sample size. 结果模拟研究表明大样本时MCMC法可得到近似无偏的参数估计。
- Used large sample datum to train the BP network, formed an identifiable and rememberable non-linear forecasting system. 利用大样本数据对网络进行了训练,形成了有识别和记忆功能的非线性预测系统。
- Is it possible for an estimator to be biased in finite sample but consistent in large sample? 一个估计量是否有可能在有限样本中是有偏的但又具有一致性?
- At present, heteroscedastic data can only be analyzed by group test method that requires large sample. 对于异方差问题目前工程上只能采用成组试验方法,因此试验量很大;
- A population parameter is a constant, unchanging value estimated from a sample statistic. 母体参数是一个持续不变的由统计样本推算出的值。
- Objective To learn the aminogram of urine in normal infants and young children in a relatively large sample of control groups. 目的经113例相对较大样本尿氨基酸检测,了解正常婴幼儿尿氨基酸谱。
- Methods Infer a parameter's or some parameters' confidence region from the confidence region of entire parameters on the basis of large sample size. 方法在大样本条件下由整体参数的置信域出发推导某个或某些参数的置信域。
- He bit off a large piece of the apple. 他咬下一大块苹果。
- Discussions on Estimation in Sampling Statistics 抽样估计中几种估计量的评价