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Based upon an estimation of between-volunteer variability, it was calculated that nine volunteers per group would be required to allow an 85% chance of detecting an 8.0 mm difference in endometrial thickness between fulvestrant and placebo treated groups.
A distinctive feature of MLM is that it allows for an estimation of between-person and within-person models to test whether the effect of a predictor on an outcome varies by patient subgroup.
In developing countries, prevalence of malnutrition in the form of undernutrition is still high with an estimation of about 850 million affected people between the years 2010 and 2012 [ 8].
In absence of previous literature permitting an estimation of an expected between-groups difference, no sample size calculation had been driven.
The model produces random effect estimations for the mean logit sensitivity and specificity with corresponding 95% confidence intervals, it produces also an estimation for the amount of between-study variation for sensitivity and specificity separately, and finally an estimation of the covariance between sensitivity and specificity.
Therefore, the general assessment of correlations between features of two types always includes an estimation of the closeness between two point sets.
This methodology compares experimental results with their numerical reproduction using the finite element method in order to obtain an estimation of the error between the results.
For instance, using (1) we can obtain an estimation of the distance between nodes and as (4).
On the basis of an estimation of the relation between thorax temperature excess above ambient air (Tthorax-Ta) and oxygen consumption in endothermic bees [59], [60], and measurements of the resting metabolism [30], [31] a rough estimation is possible how much heat an endothermic bee dissipates in comparison to ectothermic bees.
Box 2 presents an estimation of the gap between expected and actual sick child consultations in intervention areas.
Such a formula gives an estimation of the correlation between g and ĝ, which is not guaranteed to fall within the theoretically defined range of the parameters.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com