Muhammad Taimoor SafdarFA14-MSSTAT-003Dr. Muhammad IsmailLHR TP 44842026-02-042016https://repository.cuilahore.edu.pk/handle/123456789/1055In the mid of 1780’s, the famous mathematician Pierre Laplace thought to approximate the total French people by using the identified number of childbirths in a specified year and the estimated ratio of the population to annual births on the basis of population sample of 700 communes. However, his projected ratio was on no occasion recycled for its inventive purpose because it became problematic to obtain an appropriate total of childbirths for the entire French people due to many reasons including the military events against France during Napoleon’s early years.enDr. Muhammad IsmailFA14StatisticsDepartment of statisticsPOPULATIONGENERALIZED ESTIMATORS OF POPULATION MEAN IN TWO PHASE SAMPLING IN THE PRESENCE OF NON RESPONSEThesis