In order to be considered scientifically rigorous, this evidence must be accurate, reliable, reproducible, and measurable, among many other factors. One method in which researchers are able to provide empirical support for their research is through the employment of statistics. Statistics refers to ...
Data from the National Bureau of Statistics show that China's total expenditure on research and development (R&D) in 2022 grew by 10.1 percent to over 3 trillion yuan from the prior year, with 84 percent of this growth coming from enterprises. The country also tops the world in the total ...
Cell kinetics of histologic variants ofin situ breast carcinoma carcinomain situ (median 43%, geometric mean 12%, mean 63 ± 0.46%) than in comedo intraductal carcinoma (median 4.40%, geometric mean 3.74%, mean ... John,S.,Meyer - 《Breast Cancer Research & Treatment》 被引量: 222发表:...
The odds of a criminal using technicalmeansto bypass a security system are so small that the FBI doesn't even track those statistics. 出自-2016年12月阅读原文 Thatmeansdefeating the lock somehow, or breaking a window. 出自-2016年12月阅读原文 ...
The statistics of photon counting by systems affected by deadtime are potentially important for statistical image reconstruction methods. We present a new way of analysing the moments of the counting process for a counter system affected by various models of deadtime related to PET and SPECT imaging...
EG Yehia - 《Science Journal of Applied Mathematics & Statistics》 被引量: 0发表: 2021年 Developing a Liu-type estimator in beta regressionmodel (Liu-type) estimator is compared to the ML estimator and other biased (ridge and Liu) estimators depending on the mean squared error (MSE) criterio...
Censored data sets are often encountered in water quality investigations and streamflow analyses. A Monte Carlo analysis examined the performance of three ... CN Kroll,JR Stedinger - 《Water Resources Research》 被引量: 172发表: 1996年 Estimation and potential improvement of the quality of legacy...
- Communications in Statistics - Simulation and Computation 被引量: 13发表: 2007年 Estimating Population Mean with Missing Data in Unequal Probability Sampling Nonresponse problem is a serious obstacle to the validity of estimates in a survey. The estimates become biased due to the missing values ...
In this paper, the largest and the smallest observations are considered, at the time when a new record of either kind (upper or lower) occurs based on a se... J Ahmadi,N Balakrishnan - 《Statistics & Probability Letters》 被引量: 37发表: 2010年 The Effect of Bereavement Due to Suicide...
An ES is the magnitude of the difference between two groups in standardized terms, and is free of the original measurement unit (Cohen, 1988). The standardized mean difference applies to research findings that contrast two groups on their respective mean scores on some independent variable that ...