Article: QC assigned values from peer data.(Tips from the clinical experts)

Article: Ticket to nowhere: in the wake of A Nation at Risk, educators pledged to focus anew on student achievement. Two decades later, little progress has been made. (Feature).
Education Next;  March 22, 2003 ;     700+ words ......best stagnated, if not declined. The Standard Deviation The standard deviation is a statistical concept that will help...around their average. In general, a full standard deviation (or 1.0 standard deviations) is considered...

Article: standard deviation
A Dictionary of Earth Sciences;      59 words ...standard deviation A measure of the normal variation...of the samples fall within one standard deviation on either side of the mean, 95...because of the bellcurve effect. The standard deviation is calculated as the root-mean-squa...

Article: variance
A Dictionary of Nursing;      11 words ...variance ( vair -i-ăns) n. (in statistics) see standard deviation .

Article: NIST collaborates on study of adaptive characterization of jitter noise in sampled high-speed signals.(General Developments)(Brief Article)
Journal of Research of the National Institute of Standards and Technology;  July 1, 2003 ;     281 words ......However, given an estimate of the standard deviation of the jitter noise, one can correct...frequencies (up to 50 GHz). To estimate the standard deviation of jitter noise, many (hundreds to...each time sample, they estimate the standard deviation of the jitter noise. Since there...

Article: variation (statistical)
A Dictionary of Sociology;      268 words ......deviation, decile range, and the standard deviation, which is by far the most important...all cases are contained within one standard deviation on either side of the mean, about...deviations on either side of the mean. The standard deviation of a distribution thus summarizes...

Article: How far can you see upstream? Supply chain visibility can help in financially troubled times.(CLINICAL BUSINESS STRATEGIES)
Healthcare Purchasing News;  February 1, 2009 ;     700+ words ......this week minus last week) * This week's standard deviation of lead time (for 8 previous weeks) * Last week's standard deviation of lead time (for 8 previous weeks) * Difference of standard deviation of lead time week-over-week (this week...

Article: sigma
The Oxford Pocket Dictionary of Current English;      40 words ...sig·ma / ˈsigmə / • n. the eighteenth letter of the Greek alphabet ( Σ , σ ), transliterated as ‘s.’ • symb. ∎  ( Σ ) mathematical sum. ∎  ( σ ) standard deviation.

Article: standard error of the mean
A Dictionary of Biology;      43 words ...standard error of the mean ( SEM ) The standard deviation divided by the square root of the number of samples. Whereas the standard deviation of a population provides a measure of the scatter of the data, the SEM is a measure of the accuracy of the calculated population mean .

Article: haldane
A Dictionary of Zoology;      23 words ...haldane A unit of evolutionary morphological change, equal to one standard deviation per generation, and named for J. B. S. Haldane . See also DARWIN .

Article: Are inventory benchmarks really useful? Or could you be setting your organization up for stockouts?(CLINICAL BUSINESS STRATEGIES)
Healthcare Purchasing News;  November 1, 2008 ;     700+ words ......Variability of Daily Demand (measured as standard deviation), Average Lead Time (time from order...of Lead Time (again, measured as standard deviation). If one sets the ROP without taking...capital in non-productive assets. Standard deviation is a statistical measurement of ...

Article: IQ and education reform.(correspondence)(Brief article)
Education Next;  January 1, 2008 ;     276 words ......produced gains of about a third of a standard deviation. I accept that evidence. But in response...but an increase of a third of a standard deviation does not qualitatively change a student...achievement by another third of a standard deviation? Then another, then another? The...

Article: Student's t distribution
A Dictionary of Computing;      146 words ......the normal distribution when the standard deviation is estimated from data. Discovered...uncertainty in the estimate of the standard deviation (see measures of variation ). The...associated with the estimate of the standard deviation. Tables of the t distribution are...

Article: Blood levels only way to check drug compliance in pediatric liver recipients.(Brief Article)
Transplant News;  June 14, 2004 ;     245 words ......caregivers, and patients. In addition, a standard deviation was calculated for blood levels of...over time for each patient. If the standard deviation was high, the patient was assumed...rejection and number of biopsies) was the standard deviation of medication blood levels, wrote...

Article: A program to prepare Levey-Jennings charts with integrated software.
Medical Laboratory Observer;  September 1, 1987 ;     661 words ......presses IBM PC function key F5, and the standard deviation, the mean, and the mean 2 SD are...contains instructions to calculate the standard deviation; the instructions are written out...BUN control values and calculated standard deviation limits. For a clean initial spreadsheet...