Sökning: "Wald confidence interval"

Hittade 3 avhandlingar innehållade orden Wald confidence interval.

  1. 1. Towards a flexible statistical modelling by latent factors for evaluation of simulated responses to climate forcings

    Författare :Ekaterina Fetisova; Gudrun Brattström; Anders Moberg; Rolf Sundberg; Johan Lindström; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Confirmatory Factor Analysis; Measurement Error models; Structural Equation models; Wald confidence interval; Fieller confidence set; Climate model simulations; Climate forcings; Climate proxy data; Detection and Attribution; Mathematical Statistics; matematisk statistik;

    Sammanfattning : In this thesis, using the principles of confirmatory factor analysis (CFA) and the cause-effect concept associated with structural equation modelling (SEM), a new flexible statistical framework for evaluation of climate model simulations against observational data is suggested. The design of the framework also makes it possible to investigate the magnitude of the influence of different forcings on the temperature as well as to investigate a general causal latent structure of temperature data. LÄS MER

  3. 2. Evaluation of climate model simulations by means of statistical methods

    Författare :Ekaterina Fetisova; Gudrun Brattström; Rolf Sundberg; Anders Moberg; Peter Guttorp; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Climate models; Climate proxy; Pseudo-proxy experiment; Factor analysis; the Wald confidence interval; the Fieller confidence set.; Mathematical Statistics; matematisk statistik;

    Sammanfattning : Evaluation of climate model simulations is a key issue within climate research. The statistical framework proposed by Sundberg et al., 2012, provides a theoretical underpinning of methods for evaluation of climate models by use of climateproxy data from the last millennium. LÄS MER

  4. 3. Diet and renal cell carcinoma

    Författare :Bahram Rashidkhani; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Renal cell carcinoma (RCC) represents 80-85% of all tumors of the kidney and is responsible for about 2% of all cancer deaths in developed countries. Its incidence varies among countries, among migrants, and by socioeconomic status suggesting that environmental factors play a major etiological role. LÄS MER