A new study offers a framework to estimate the sample size required for microbiome association studies based on expected effect sizes and analysis methods. By utilizing two large datasets ...

Sample Size Neglect is a cognitive bias whereby people reach false conclusions by failing to consider the sample size in question.

Additional samples would be taken to meet the sample size if greater than seven. Equation 1 assumes a continuous response that is normally distributed. Some data, such as for a limulus amebocyte ...

Discover how the law of large numbers explains why larger samples lead to more accurate estimates of a population's true average.

Back in the day, we learned in statistics that you need a sample size of at least 2% of the size of population to make statistically significant conclusions about the behavior of the population ...

The following data set (WIRE) contains breaking strength measurements recorded in pounds per inch for 25 samples from a metal wire manufacturing process. The subgroup sample sizes vary between 3 and 7 ...

A method is described for determining the sample size required for a specified precision simultaneous confidence statement about the parameters of a multinomial population. The method is based on a ...

The analysis provides several options and opportunities for the trial, for example: An opportunity to re-estimate the sample size An opportunity to modify the trial design An option to stop the trial ...