Results 251 to 260 of about 469,724 (303)

Markov Systematic Sampling

Biometrical Journal, 1998
Summary: A new systematic sampling scheme with Markovian behaviour which yields positive first order inclusion probabilities for all units and positive second order inclusion probabilities for all pairs of units is introduced. The suggested method has been compared with simple random sampling, stratified random sampling, linear systematic sampling and ...
Sampath, S., Uthayakumaran, N.
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Generalized Systematic Sampling

Communications in Statistics - Simulation and Computation, 2014
In this paper, we introduce a new systematic sampling design, called a Generalized Systematic Sampling (GSS), for estimation of finite population mean. The proposed design is found to be better than Simple Random Sampling (SRS) and the generalization of the several existing systematic sampling schemes such as, Linear Systematic Sampling (LSS), Diagonal
Zaheen Khan, Javid Shabbir, Sat Gupta
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On Modified Systematic Sampling

Biometrika, 1968
SUMMARY In the presence of a linear trend in the population, a slight modification of the usual systematic sampling procedure is found to be highly effective in reducing the error variance of the estimator for the population mean. The efficiency of this modified design in the presence of certain trends, other than linear, such as 'random', 'quadratic ...
D. SINGH, K. K. JINDAL, J. N. GARG
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Systematic Sampling in Forestry

Biometrics, 1964
Systematic sampling over irregular areas has been considered in forestry by Schumacher and Chapman [1942] and their method rejected on practical grounds by Finney [1948]. An application of systematic sampling with probabilities proportional to sizes (p. p. s.) proposed by Madow [1949] is given. Comparisons with systematic sampling non p. p.
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Note on Systematic Sampling

Biometrical Journal, 1987
AbstractIn the use of systematic sampling in surveys it is known that the effect of negative correlations (=ϱwst) between deviations from stratum means of pairs of items in the same systematic sample is such that the resulting variance V(ȳst) can be zero for systematic sample means ȳst (e.g., Cochran, 1977, ch. 8).
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The Variance of the Mean of Systematic Samples

Biometrika, 1956
Systematic sampling methods have been used in a variety of fields, notably in forestry and ecological studies, because of their convenience in the field and their advantages over a randomized scheme if the survey is also to be used for mapping. Their use was justified by work such as that of Hasel (1938) and Osborne (1942), who examined the sampling ...
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Systematic sampling

2019
AbstractIn many contexts it is difficult or impossible to select a simple random sample. For example, the number of units in the finite population, N, may not be known in advance, or it may not be feasible to assign labels to all units in the population and to select an SRS from these labels (e.g., crabs within boxes on a fishing vessel).
David G. Hankin   +2 more
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Modification of systematic sampling: A comparison with a conventional approach in systematic sampling

2012 International Conference on Statistics in Science, Business and Engineering (ICSSBE), 2012
Systematic sampling is a nonbiased method in recruitment selection process since it is a probability sampling. However, due to slow recruitment, we modified the systematic sampling and evaluate this technique in comparison with the conventional approach of systematic sampling.
Mohamad Adam Bujang   +6 more
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