Sentence examples for significance sample size from inspiring English sources

In order to detect a 20% difference in physical activity at 80% power and 5% level of significance, sample size of 310 mothers of young children are required at the 6-months post-intervention survey in each of the intervention and control groups.

We consider a number of different situations that can manifest themselves in hydrologic time series, including the dependence of the results on the magnitude of the shift, significance level, sample size and location of the change point within the series.

Statistical power analysis involves determining statistical power of a design given a statistical significance level, sample size, and effect size, or determining the sample size necessary to obtain a desired level of power for a specified effect size and significance level.

To reach statistical significance, the sample size will be very large.

This analysis showed that to power the study at 0.80 given the 0.05 level of significance, a sample size of minimum 20 participants was needed for each sample separately.

At a 90% power to detect a 2 fold difference at the 1% level of significance, the sample size required would be at least 20 in each treatment group (10 for each outcome).

Hence we can calculate a conservative power estimate using the ln-transformed normalized counts, the desired significance level, sample size (1 8 flies), and variance σ (as estimated by the mean sum of squares).

We found the projected reduction in postextubation respiratory failure (20.5%vs.27.3%3%, p = 0.3) that failed to reach statistical significance due to sample size.

Researchers argued that it is easier to achieve a statistical significance when the sample size is large rather than small and vice versa.

Statistical power (1-β error probability) is computed as a function of significance level α, sample size, and population effect size (also defined by the odds ratio under the logistic regression criteria).

The power to detect differences at the 0.01 level of significance with our sample size of 112 was 0.35.