• variance
  • Variance matters: the shape of a datum. (biomedsearch.com)
  • However, linear regression of this type requires that the log choice data be normally distributed, of equal variance for each log reinforcer ratio, and that the x (log reinforcer ratio) measures be fixed with no variance. (biomedsearch.com)
  • We argue that, while log transformed choice data may be normally distributed, log reinforcer ratios do have variance, and because these measures derive from a binomial process, log reinforcer ratio distributions will be non-normal and skewed to more extreme values. (biomedsearch.com)
  • If an individual series of observations is generated from simulations that employ a given variance of noise that equals the observed variance of our data series of interest, and a given length (say, 100 points), a large number of such simulated series (say, 100,000 series) can be generated. (wikipedia.org)
  • The tolerance interval differs from a confidence interval in that the confidence interval bounds a single-valued population parameter (the mean or the variance, for example) with some confidence, while the tolerance interval bounds the range of data values that includes a specific proportion of the population. (wikipedia.org)
  • assess
  • An attempt is made to assess a set of biochemical, kinetic and anthropometric data for patients suffering from alcohol abuse (alcoholics) and healthy patients (non-alcoholics). (edu.pl)
  • The control chart, also known as the 'Shewhart chart' or 'process-behavior chart' is a statistical tool intended to assess the nature of variation in a process and to facilitate forecasting and management. (wikipedia.org)
  • population
  • A tolerance interval is a statistical interval within which, with some confidence level, a specified proportion of a sampled population falls. (wikipedia.org)
  • Baines arrived in India in 1870, approximately halfway through the five-year-long attempt to collect statistical population data, which was the first such exercise by the Raj administration. (wikipedia.org)
  • His obituary in the Journal of the Royal Statistical Society describes the changes as being "first the separation of caste from religion and, secondly, the substitution of the population subsisting by an occupation for that exercising it. (wikipedia.org)
  • work
  • Baines spent much of his time organising the censuses and also analysing and producing reports based on their data, which were "widely recognised as the work of a brilliant ethnographer and statistician", according to an obituary published in Nature. (wikipedia.org)
  • Results
  • These 100,000 series can then be analysed individually to calculate estimated trends in each series, and these results establish a distribution of estimated trends that are to be expected from such random data - see diagram. (wikipedia.org)
  • Many protocols include provisions for avoiding bias in the interpretation of results. (wikipedia.org)
  • approach
  • clearly such a constructed series would be trend-free, so as with the approach of using simulated data these series can be used to generate borderline trend values V and −V. In the above discussion the distribution of trends was calculated by simulation, from a large number of trials. (wikipedia.org)
  • The control charts: a statistical approach to the study of manufacturing process variation for the purpose of improving the economic effectiveness of the process. (wikipedia.org)
  • main
  • The main goal is to identify the data set structure, finding groups of similarity among the clinical parameters or among the patients. (edu.pl)
  • This paper presents information on the uses of statistics and those who use them, the strengths and limitations of the main data sources, and other challenges that need to be met to obtain good evidence on the migration of health workers. (scielosp.org)
  • process
  • ISO/TR 14468:2010 assesses a measurement process where the characteristic(s) being measured is (are) in the form of attribute data (including nominal and ordinal data). (asq.org)
  • error
  • They also lead to model comparisons, which assume equal normally distributed error around every data point, being incorrect. (biomedsearch.com)
  • confidence
  • If such data are processed to produce a 95% confidence interval for the mean mileage of the model, it is, for example, possible to use it to project the mean or total gasoline consumption for the manufactured fleet of such autos over their first 5,000 miles of use. (wikipedia.org)
  • visual
  • Levey-Jennings chart is a graph that quality control data is plotted on to give a visual indication whether a laboratory test is working well.The distance from the mean is measured in standard deviations (SD). (wikipedia.org)
  • sample
  • All the percentages presented in this report are based on weighted data, the unweighted sample sizes are shown in the tables. (gov.scot)
  • general
  • Many of the topics discussed in this chapter pertain to experimental data in general, but the context of their use and examples given are in the field of toxicology. (springer.com)
  • Data related to the influence of general anesthesia on the normal myocardial circulation are limited. (biomedsearch.com)
  • produce
  • Given a set of data and the desire to produce some kind of model of those data, there are a variety of functions that can be chosen for the fit. (wikipedia.org)