Sökning: "two-sample problem"
Hittade 5 avhandlingar innehållade orden two-sample problem.
1. Nonparametric Statistical Inference for Entropy-type Functionals
Sammanfattning : In this thesis, we study statistical inference for entropy, divergence, and related functionals of one or two probability distributions. Asymptotic properties of particular nonparametric estimators of such functionals are investigated. We consider estimation from both independent and dependent observations. LÄS MER
2. Contributions to generalized Wilcoxon rank tests
Sammanfattning : In unbalanced small sample size problems with right censorings, the variance estmators of linear rank statistics, may be biased. This is the case with the commonly applied variance estimators for the generalized Wilcoxon rank test statistics of Gehan and Prentice. LÄS MER
3. Methods for interval-censored data and testing for stochastic dominance
Sammanfattning : This thesis includes four papers: the first three of them are concerned with methods for interval-censored data, while the forth paper is devoted to testing for stochastic dominance.In many studies, the variable of interest is observed to lie within an interval instead of being observed exactly, i.e. LÄS MER
4. Interference Rejection and Channel Detection in Mobile Communication
Sammanfattning : This thesis is devoted to statistical problems in mobile communication, in particular disturbance rejection and change detection are studied. Co-channel interference is a significant problem for systems based on TDMA, e.g. EDGE. LÄS MER
5. The potential of ambulance records for a road traffic safety agenda in low-income cities : studies from Karachi, Pakistan
Sammanfattning : Road traffic injuries (RTIs) are a major public health problem in low-income countries. The overall aim of the thesis is to increase knowledge about the characteristics of RTI events and victims and their changes over time in an urban, low-income setting. The accuracy of ambulance data for RTI surveillance is also investigated. LÄS MER