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math.ST2018
Large sample properties of the Midzuno sampling scheme with probabilities proportional to size
Guillaume Chauvet
Midzuno sampling enables to estimate ratios unbiasedly. We prove the asymptotic normality for estimators of totals and ratios under Midzuno sampling. We also propose consistent var…
stat.ME2018
Preserving the distribution function in surveys in case of imputation for zero inflated data
Brigitte Gelein, Guillaume Chauvet
Item non-response in surveys is usually handled by single imputation, whose main objective is to reduce the non-response bias. Imputation methods need to be adapted to the study va…
stat.ME2018
Inference for two-stage sampling designs with application to a panel for urban policy
Guillaume Chauvet, Audrey-Anne Vallée
Two-stage sampling designs are commonly used for household and health surveys. To produce reliable estimators with assorted confidence intervals, some basic statistical properties…