TY - BOOK AU - Gurmit Singh TI - Improvement possibility in the Rao, Hartley and Cochrans method of sampling U1 - T 311.210.18 G96I PY - 1988/// CY - Ludhiana PB - P.A.U. KW - SAMPLING (STATISTICS) -- METHODOLOGY KW - MODIFIED RHC SCHEME KW - RHC ESTIMATOR KW - UNEQUAL SIZE GROUPS N2 - A modified estimator is suggested that the IPPS scheme due to Sankaranarayanan be used for construction of first random group and remining(n-1) groups as ususal The relative efficiency of RHC estimate of population total under the proposed modification ha ER -