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The performances of non-seasonal time series models assumed on outlier free series in describing the generating mechanism of an outlier is discussed. The contribution of the magnitude of outliers and bias introduced into these models are investigated. Analytically we have shown that the magnitude...
In this paper, a new imputation is developed for the treatment of missing data, which removes the bias of usual ratio imputation. The Jackknife variance estimators are provided and they are proved to be approximately design-unbiased under uniform response. Our method is compared with the existing...
Early detection of breast cancer is an important public health policy. Programs of regular screening examinations have been widely established in an attempt to detect the disease when the primary tumour diameter is small. In South Australia, BreastScreen SA suggests that women between the ages of...
The concept of Cumulated Mean Income Curve (COMIC) is introduced which can play an important role for measuring inequality. Its properties are studied along with its relation with some known inequality curves. COMIC Index and COMIC orderings are defined. The use of Rawlsian approach in COMICs has...