• Based on the expressed focus and emphasis of the survey, an evaluation of the distribution of 1992 deaths was undertaken to assist in the identification of sample strata. (cdc.gov)
  • This evaluation established four basic criteria for the identification of sampling strata: age, race, gender, and cause of death. (cdc.gov)
  • Certificates from the CMS were selected with certainty for 12 of the 50 strata (see table A), representing 45-percent of the total sample of 22,957 certificates. (cdc.gov)
  • For the remaining 38 non-certainty strata, the sampling interval or "take every" values ranged from 1.09 to 115.24. (cdc.gov)
  • Larger samples are taken in the strata with the greatest variability to generate the least possible overall sampling variance. (wikipedia.org)
  • The reasons to use stratified sampling rather than simple random sampling include If measurements within strata have lower standard deviation, stratification gives smaller error in estimation. (wikipedia.org)
  • In stratified sampling, the sampling is done on elements within each strata. (wikipedia.org)
  • Higher sampling error, which can be expressed in the so-called "design effect", the ratio between the number of subjects in the cluster study and the number of subjects in an equally reliable, randomly sampled unclustered study. (wikipedia.org)
  • Watch a brief demonstration of IBM SPSS Complex Samples in action. (ibm.com)
  • James Sample was married to Ernestine F. Sample (August 15, 1909 - September 6, 1980). (wikipedia.org)
  • Sample made his debut for Cumberland in the 1980 Minor Counties Championship against Lincolnshire. (wikipedia.org)
  • Sample played Minor counties cricket for Cumberland from 1980 to 1992, including 31 Minor Counties Championship matches and 4 MCCA Knockout Trophy matches. (wikipedia.org)
  • The over-sampled subgroups include black decedents, female decedents, decedents under age 35, and decedents over age 99. (cdc.gov)
  • Risk of incorrect rejection: the risk that the sample supports the conclusion that the recorded amount balance is materially misstated when it is not materially misstated. (wikipedia.org)
  • Rejection sampling works as follows: Sample a point on the x-axis from the proposal distribution. (wikipedia.org)
  • This PowerPoint provides an overview of types of samples, explains when each is appropriate, and discusses how to determine sample size. (ncsl.org)
  • What is sample size? (slideshare.net)
  • Understand the significance of sample size. (slideshare.net)
  • 5.  Availability of resources sets the upper limit of the sample size. (slideshare.net)
  • Optimum sample size determination is required for the following reasons: 4. (slideshare.net)
  • 9. CONVERSELY  If the sample size is too large: 2. (slideshare.net)
  • Auditors can lower the sampling risk by increasing the sampling size. (wikipedia.org)
  • Note that the samples do not have to be equal size and not all samples are mandatory in a pixel. (wikipedia.org)
  • An important implication of this formula is that the sample size must be quadrupled (multiplied by 4) to achieve half (1/2) the measurement error. (wikipedia.org)
  • When choosing a Sampling Valve, different factors have to be considered: The material, pressure and temperature rating, gaskets, size and position of the valve according to the pipe specification of the plant. (wikipedia.org)
  • 3. Changing the size of your sample during the course of the research The first two features of a theoretical sample deals with issues right at the beginning of the research project. (wikipedia.org)
  • This must be translated into an assessment both of sample portion size and number, and the frequency of taking samples. (wikipedia.org)
  • Much of the legislation relates to food as supplied to a consumer, meaning that every portion of a size of perishable food and foods at risk as may be supplied to a consumer has to comply, so that in such cases the sample submitted for analysis could simply be an entire consumer-sized portion. (wikipedia.org)
  • There are exceptions, however, such as the sampling of nut products for the presence of aflatoxins, which stipulate a primary sample size related to the size of the consignment - with associated requirements for initial homogenisation to produce a smaller sample to be sent for analysis. (wikipedia.org)
  • Larger sample size will reduce the chance of sampling error occurring. (wikipedia.org)
  • Even if a material sample is not countable as individual items, the quantity of the sample may still be describable in terms of its volume, mass, size, or other such dimensions. (wikipedia.org)
  • However it is not the same as SRS because not every possible sample of a certain size has an equal chance of being chosen (e.g. samples with at least two elements adjacent to each other will never be chosen by systematic sampling). (wikipedia.org)
  • It is usually necessary to increase the total sample size to achieve equivalent precision in the estimators, but cost savings may make such an increase in sample size feasible. (wikipedia.org)
  • We continue until we have sample of desired size k. (wikipedia.org)
  • To illustrate the danger of systematic skip concealing a pattern, suppose we were to sample a planned neighborhood where each street has ten houses on each block. (wikipedia.org)
  • A more complete description of outcomes, however, could specify both the denomination and the suit, and a sample space describing each individual card can be constructed as the Cartesian product of the two sample spaces noted above (this space would contain fifty-two equally likely outcomes). (wikipedia.org)
  • Flipping a coin leads to a sample space composed of two outcomes that are almost equally likely. (wikipedia.org)
  • The sampling theory of Shannon can be generalized for the case of nonuniform samples, that is, samples not taken equally spaced in time. (wikipedia.org)
  • the 36 ordered pairs (D1 , D2) constitute a sample space of equally likely events. (wikipedia.org)
  • The sample is dropped into the top, and the box produces two equally divided subsamples. (wikipedia.org)
  • In Orthogonal sampling, the sample space is divided into equally probable subspaces. (wikipedia.org)
  • Moreover, the in-depth analysis of a small-N purposive sample or a case study enables the "discovery" and identification of patterns and causal mechanisms that do not draw time and context-free assumptions. (wikipedia.org)
  • The term sample library, when used in a commercial context, implies a collections of samples that have been produced and licensed for the purpose of being used as samples. (wikipedia.org)
  • This selection issue is akin to the truncated regression model where we face selection on the basis of a binary response variable, but the problem has been referred to as length-biased sampling in this specific context. (wikipedia.org)
  • René Baños Jorge Chaviano Oscar Porro Abel Sanabria Reinaldo Sanler Renato Mora Una Forma Mas (April 1995) De Vacaciones (July 1997) Live in Berlin (1998) Cambio de Tiempo (April 2002) Akapelleando (January 2008) Vocal Sampling at - retrieved 26 October 2013 - retrieved 26 October 2013 CD liner notes: "Recorded 200% live on August 8th 1997 at the Heimatlklange Festival in Berlin, Germany. (wikipedia.org)
  • James W. Sample (October 8, 1910 - October 7, 1995) was an American conductor. (wikipedia.org)
  • James Sample died in 1995 of a heart condition in Meadville, Pennsylvania it would have been Samples 85th birthday the day after. (wikipedia.org)
  • NIOSH considers that all particles entering the sampler should be included as part of the sample whether they deposit on the filter or on the inside surfaces of the sampler. (cdc.gov)
  • Numerous research studies have shown that material deposited on the inside surfaces of air sampling cassettes may constitute a significant fraction of the aerosol that enters the sampler. (cdc.gov)
  • Consideration of internal sampler wall deposits is included in related international voluntary consensus standards that describe the sampling and analysis of airborne metals and metalloids. (cdc.gov)
  • 8 and (4) the use of internal sampling cartridges (sampler inserts). (cdc.gov)
  • Optimum allocation (or disproportionate allocation) - The sampling fraction of each stratum is proportionate to both the proportion (as above) and the standard deviation of the distribution of the variable. (wikipedia.org)