id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ejpam-5449	Azeem, Muhammad; Salam, Abdul ; Hussain, Sundus 	A Novel Forced Scrambling Model Under Time-Scaled Surveys for Estimation of Population Variance	2025	19	.pdf	application/pdf	6989	416	73	Math, 18 (1) (2025), 5449 5 of 19 In traditional sample surveys, a simple variance estimator of a sensitive variable using the model (R1) is given by: s2Y (GS) = s2Z − (p1 + p2)(1− p1 − p2)(z̄ − F )2 − p2σ 2 T z̄ 2 p1 + p2(σ2 T + 1) . (11) In traditional sample surveys, a ratio-type estimator of Y is: RGS = s2Z − (p1 + p2)(1− p1 − p2)(z̄ − F )2 − p2σ 2 T z̄ 2 p1 + p2(σ2 T + 1) σ2 X s2X .	cache/ejpam-5449.pdf	txt/ejpam-5449.txt