Sentence examples for strata sample from inspiring English sources

The strata sample sizes were determined as detailed in the online supplementary file.

While we are the first to estimate associations between maternal B vitamin and Hcy concentrations and childhood WG, in some, strata sample size was reduced considerably.

The total number of households to be selected from each of the three primary strata considered the total number of households in each of the primary strata, sample size and overall total number of households at district level.

The logarithmic increase of the traffic with larger sets can be explained by the compression of strata estimators: the k-th strata samples the set with probability 2−k, and for small input sets, the strata tends to contain long runs of zeros that are more easily compressed.

Tracer transport through the four strata sampled by the drive points indicated a permeability variation of three orders of magnitude.

The determination of the sample size for this study was based on the strata sampling method of calculation.

We weighted data by the strata, sampling units (hospitals), and sampling weights based on the nationwide inpatient sample sampling design.

For each strata sampled in the 1992 EDHS, we map the GIS coordinates of the center of that strata and capture the 30 closest clusters to this centroid in subsequent surveys.

A counter hypothesis, based on the detection of very small quantities of chrysotile and tremolite in strata samples and human lung tissue, postulates a significant role of these minerals as one of several factors contributing to pleural disease.

The response sample was in a first step corrected for disproportionate stratification (by assigning weights inverse to the strata sampling fractions) and in a second step adjusted to be representative of all 2007 deaths for age, sex, place and cause of death (case weights calculated to reflect the distribution and combination of these characteristics in all 2007 deaths).

For each design alternative the initial number of field plots was set to n = 20, except for stratified sampling, where a minimum of 40 field plots was predefined to obtain a sufficient within-strata sample size.