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 ...

Equation 1 can also be used if a first sample size (e.g., seven) is available to estimate the variance. With this variance estimate and the difference between the specification and the OOS result, the ...

The sample size legend in the lower left corner displays the minimum and maximum subgroup sample sizes. By default, the control limits are limits estimated from the data. You can use the STDDEVIATIONS ...

Based on the results of an earlier phase 2 study, the expected percentage of treatment success in 34% in the experimental group and 20% in the control group. The sample size calculation yields that ...

Robert D. Tortora, A Note on Sample Size Estimation for Multinomial Populations, The American Statistician, Vol. 32, No. 3 (Aug., 1978), pp. 100-102 Free online reading for over 10 million articles ...

“The sample size doesn't change much for populations larger than 20,000.” What gives? I suspect it has something to do with the composition of samples and populations.

The law of large numbers is important in statistical analysis because it gives validity to your sample size. The assumptions you make when working with a small amount of data may not appropriately ...

Sample size neglect consists of ignoring the effect of small samples on our ability to draw such conclusions. In the context of finance, this can mislead investors in various ways.