standard error of the mean


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stan·dard er·ror of the mean (SEM),

a statistical index of the probability that a given sample mean is representative of the mean of the population from which the sample was drawn.

stan·dard er·ror of the mean

(SEM) (standărd erŏr mēn)
Statistical index of the probability that a given sample mean is representative of the mean of the population from which the sample was drawn.

stan·dard er·ror of the mean

(standărd erŏr mēn)
Statistical index of probability that a given sample mean is representative of mean of the population from which the sample was drawn.
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The mean of the obstetric conjugate diameter was 11.05 cm (CI 95 % 11 to 11.1), with a standard error of the mean of 0.02, a variance of 0.12 and standard deviation of 0.4.
Misused of standard error of the mean (SEM) when reporting variability of a sample.
The means with different letters in each column are significantly different according to Duncans' Multiple Range Test ( less than 0.05 p value) +- Standard error of the mean.
With randomization the inaccuracy depends on the typical difference in the means of the two groups, which is therefore [square root of (2)].SD[square root of (n)] (because the groups are independent and each has the same standard error of the mean, SD[square root of (n)]).
The estimated standard error of the mean for the change in nonfarm labor income from 1940 to 1970 was 2.8 percent while the corresponding figure for 1971 to 2007 was 3.0 percent.
ariakensis (244.0 mm, standard error of the mean [SE] 30.4) and near the maximum shell height (227.0 mm) measured at the time of collection.
The standard error of the mean for the pretest social responsibility data was SE = .0658.
Standard error of the mean (sem) = s/[square root of n] 24-8
Because the mean of imputed PCS or MCS scores for a given number of missing SF-12 items was calculated from different imputation models, the close-form solution (i.e., the exact formula for computation) of the standard error of the mean imputed score is practically unobtainable.
-- Means (%), standard error of the mean (%), and multiple comparison tests between means for wood volume loss, wood in bark, and bark remaining on log.
The results of three independent experiments are expressed as the mean of counts per minute (CPM) [+ or -] standard error of the mean (SEM).
N represents number of fish sampled; SE = standard error of the mean; UR = unidentifiable remains; UIR = unidentifiable insect remains.

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