Results 1 to 10 of about 8,764,363 (220)

Average Sample Number Function for Pareto Heavy Tailed Distributions [PDF]

open access: yesISRN Applied Mathematics, 2013
The main purpose of this work is shortly to give the average sample number function after a sequential probability ratio test on the index parameter alpha of stable densities, which we give a mean of the number of data required to take decision in the case , we use the fact that the tails of Levy-stable distributions are asymptotically equivalent to a ...
Boukhalfa El-hafsi
openaire   +3 more sources

Optimal Designing of Variables Chain Sampling Plan by Minimizing the Average Sample Number [PDF]

open access: yesInternational Journal of Manufacturing Engineering, 2013
We investigate the optimal designing of chain sampling plan for the application of normally distributed quality characteristics. The chain sampling plan is one of the conditional sampling procedures and this plan under variables inspection will be useful when testing is costly and destructive.
S. Balamurali, M. Usha
openaire   +2 more sources

A Lower Bound for the Average Sample Number of a Sequential Test [PDF]

open access: yesThe Annals of Mathematical Statistics, 1953
A lower bound is derived for the expected number of observations required by an arbitrary sequential test which satisfies conventional conditions regarding the probabilities of erroneous decisions.
W. Hoeffding
openaire   +3 more sources

Lower Bounds for Average Sample Number of Sequential Multihypothesis Tests

open access: yesThe Annals of Mathematical Statistics, 1967
Sections 1-5 are concerned with finding lower bounds for the expected sample sizes of sequential multihypothesis tests in the presence of a constraining error matrix. We consider $K$ simple hypotheses corresponding to $K$ density functions $f_i, i = 1, \cdots, K,$ and fix all of the entries of the $K \times K$ error matrix $A = (\alpha_{ij})$, where ...
G. Simons
openaire   +4 more sources

ON A WALD'S EQUATION AND AVERAGE SAMPLE NUMBER IN A SEQUENTIAL SIGNAL DETECTION [PDF]

open access: yesBulletin of Mathematical Statistics, 1972
It is shown that in detecting sequentially a deterministic signal 0(0 in white noise 72(0 a similar identity (iii) in theorem 2.1, to the Wald's holds concerning a stopping time r determined by making use of a likelihood ratio. It is also shown that r has finite moments of any order under quite weak conditions over the signal. The exact A. S. N.
T. Nagai
openaire   +3 more sources

Optimal average sample number of the SPRT chart for monitoring fraction nonconforming

open access: yesEuropean Journal of Operational Research, 2013
Abstract The Sequential Probability Ratio Test (SPRT) control chart is a powerful tool for monitoring manufacturing processes. It is highly suitable for the applications where testing is destructive or very expensive, such as the automobile airbags test.
Salah Haridy   +3 more
openaire   +2 more sources

Implications of sample size and acquired number of steps to investigate running biomechanics

open access: yesScientific Reports, 2021
Low reproducibility and non-optimal sample sizes are current concerns in scientific research, especially within human movement studies. Therefore, this study aimed to examine the implications of different sample sizes and number of steps on data ...
Anderson Souza Oliveira   +1 more
doaj   +2 more sources

Error Probabilities and Average Sample Number of the Sequential Probability Ratio Test

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 1975
Summary Let x  1,  x  2, ... be independent random variables which under p  θ have probability density function of the form exp (θx – Ψ(θ)} relative to some measure v, where Ψ is normalized so that Ψ(0) = Ψ‘(0) = 0. Let a ≤ 0 < b, sn = ∑1  n  x  k, and T=inf{n:sn∉(a,b)}. Approximations are given for p  θ{sT ≥; b} and E  θ(T) based
D. Siegmund
openaire   +3 more sources

Average Number of Nucleotide Differences in a Sample From a Single Subpopulation: A Test for Population Subdivision [PDF]

open access: yesGenetics, 1987
ABSTRACT Unbiased estimates of θ = 4Nµ in a random mating population can be based on either the number of alleles or the average number of nucleotide differences in a sample. However, if there is population structure and the sample is drawn from a single subpopulation, these two estimates of θ behave differently.
Curtis Strobeck
openaire   +3 more sources

Formulae for Calculating the Operating Characteristic and the Average Sample Number of Some Sequential Tests

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 1958
Summary Expressions and curves are given from which it is possible to calculate the operating characteristic and average sample number of a number of sequential sampling schemes to a close degree of approximation.
K. Kemp
openaire   +3 more sources

Home - About - Disclaimer - Privacy