Mean and standard deviation are frequently used measures of central tendency and variability in data from scale variables. If data are not normally distributed, some researchers prefer reporting ...

The determination of sample size is an important part of the sample survey. This paper determines the sample size mainly considering the influence of factors su ...

Uncertainties evaluation The estimation of uncertainty in particle size measurements by sp-ICP-MS followed the guidelines outlined in the Guide to the Expression of Uncertainty in Measurement (GUM).

Objectives In this study, we sought to evaluate the extent of further visual field that could be assessed when using stimulus size V in standard automated perimetry compared with size III in advanced ...

For one or more of the publications examined, the following parameters had to be imputed based on context information: expected difference (for non-inferiority trials, always assumed ‘0’), expected ...

To find an asset's standard deviation when working with a subset of data, like only a certain range of years regarding an asset's returns, you use what's known as the formula for a sample.

*Values less than or equal to α = 0.05. Small sample sizes were applied to three different population distributions, with a total of six samples used. Care was taken to ensure that the standard ...

Tissue segmentation of individual magnetic resonance imaging (MRI) is a fundamental step in building accurate head models for brain stimulation. In nonhuman primates (NHPs), due to limited sample size ...

Heads, the funds win; tails, they do not entirely lose. Were that to occur, the standard-deviation calculation would be unfair, because it would penalize fund managers for excelling at their jobs.

As sample size increases, the standard deviation initially becomes more stable and accurate as an estimate of the population's standard deviation. This is because a larger sample is likely to ...