Dr. G. reproduces a table compiled by Dr. Brown, of Harvard, showing "probable error due to size of sample".
Melicher, T. et al. White matter changes in first episode psychosis and their relation to the size of sample studied: a DTI study.
Nashef talks the reader through basic statistics, explaining how a finding of statistical significance is defined, how it depends on size of sample and size of measured difference.
Several parameters, such as extraction solvent, particle size of sample, extraction time, liquor to material ratio and air flow were investigated to find the best extraction conditions.
The method incorporates the detection of a gene from the plant host to compensate for variations in extraction efficiency and size of sample tested.
What people often miss is that the size of sample needed also changes with the size of the effect you're trying to detect: detecting a true 0.2% difference in the size of the hippocampus between two groups, say, would need more subjects than a study aiming to detect a 25% difference.
The PEG solutions were optimized by a mono-factor test, and the other conditions of MAE including the size of sample, liquid/solid ratio, extraction temperature and extraction time were optimized by means of an orthogonal design L9 (34).
Through the central limit theorem, the size of sample can be set reasonably, so the deviation of support of any fuzzy itemset caused by sampling is limited in a small range with a high probability.
1-butyl-3-methylimidazolium bromide ([bmim]Br) solution was selected as solvent; the conditions of MAE including the size of sample, liquid/solid ratio, extraction temperature and time were optimized by means of an orthogonal design L9 34).
But currently available risk estimating systems have one or more limitations associated with lack of specificity to operation type, size of sample (reliability), range of outcomes predicted, and appreciation of hospital effects.
Extraordinary properties of diamond and the very high pressures that can be achieved simply by reducing the size of sample squeezed between two diamond anvils make the diamond anvil cell (DAC) capable of pressures beyond those existing at the center of the earth.
