This paper presents a class of ratio-type estimators for the evaluation of finite population mean under maximum and minimum values by using knowledge of the auxiliary variable. The properties of the proposed estimators in terms of biases and mean square errors are derived up to first order of approximation. Also, the performance of the proposed class of estimators is shown theoretically and these theoretical conditions are, then, verified numerically by taking three natural populations under which the proposed class of estimators performed better than other competing estimators.
In the literature, the association of biliary atresia with cytomegalovirus infection and presentation of infants with intracranial bleeding has been reported. We present a case of 02 months old female child who presented to Paediatrics ER with deep jaundice and intracranial bleeding. CT scan findings were suggestive of massive frontoparietal bleeding and patient's torch profile (cytomegalovirus Ig M) was also positive. After stabilization, the patient was referred to pediatrics surgery after a HIDA scan confirmed the findings of biliary atresia. In conclusion, biliary atresia should be considered in all patients with cholestasis and intracranial bleed and should also be searched for cytomegalovirus infection.
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