Sökning: "goodness-of-fit tests"

Visar resultat 1 - 5 av 16 avhandlingar innehållade orden goodness-of-fit tests.

1. 1. On variance estimation and a goodness-of-fit test using the bootstrap method

   Författare :Saeid Amiri; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : This thesis deals with the study of variance estimation using the bootstrap method, including the problem of choosing between nonparametric and parametric bootstrap methods. Paper I compares the two approaches, determines which method is preferable and analyses the accuracy of the approximations. LÄS MER

3. 2. Goodness-of-fit tests for some discrete multiplicative models with applications to road traffic accident analysis

   Författare :Åke Svensson; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : The work presented in the thesis was initiated by some problems in the analysis of experiments concerning the effect of speed limits on the number of road traffic accidents. In order to do such an analysis realistic statistical models are required. LÄS MER

4. 3. Some Contributions to Description and Validation of the Extreme Value Distribution

   Författare :MirNabi PirouziFard; Statistiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; weighted least squares estimator.; probability plot; power of tests; extreme value distribution; variances and covariances; goodness-of-fit tests; order statistics; Approximations of means;

   Sammanfattning : This thesis focuses on the validation and description of the Gumbel distribution. Since this is a scale and location parameter distribution, the generalized least squares regression of the order statistics on the expected values can be used, without the necessity of iteration, to obtain the best linear unbiased estimates of the parameters. LÄS MER

5. 4. On the Measurement of Model Fit for Sparse Categorical Data

   Författare :Katrin Kraus; Dag Sörbom; Ghazi Shukur; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; goodness-of-fit; sparseness; model fit; categorical data; fit statistic; sparse contingency table; Statistics; Statistik;

   Sammanfattning : This thesis consists of four papers that deal with several aspects of the measurement of model fit for categorical data. In all papers, special attention is paid to situations with sparse data. LÄS MER

7. 5. Random Multigraphs : Complexity Measures, Probability Models and Statistical Inference

   Författare :Termeh Shafie; Ove Frank; Krzysztof Nowicki; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; multigraph; vertex labeled graph; edge labeled graph; isomorphism; edge multiplicity; simplicity and complexity; entropy; joint information; information divergence; goodness-of-fit; Statistics; statistik;

   Sammanfattning : This thesis is concerned with multigraphs and their complexity which is defined and quantified by the distribution of edge multiplicities. Two random multigraph models are considered.  The first model is random stub matching (RSM) where the edges are formed by randomly coupling pairs of stubs according to a fixed stub multiplicity sequence. LÄS MER