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# ST 1802A3 - LOYOLA COLLEGE(AUTONOMOUS CHENNAI600 034 M.Sc...

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI 600 034. M.Sc. DEGREE EXAMINATION STATISTICS FIRST SEMESTER APRIL 2003 ST 1802/ S 717 SAMPLING THEORY 08.04.2003 1.00 4.00 Max: 100 Marks SECTION A (10 × 2 = 20 Marks) Answer ALL the questions. Each carries TWO marks 01. Let the sampling design be = = otherwise s n if c s P 0 3 ) ( 10 1 ) ( 3 If N=3 then what is the value of π 68 ? 02. Given a fixed size sampling design yielding sample of size 5, what is the value of = N j j 2 2 1 π ? 03. Under what condition the mean square error of an estimator becomes its variance? 04. List all possible balanced systematic samples of size 4 when N = 12. 05. Under usual notations order V SRS , V SYS ,V STR assuming the presence of linear trend. 06. Name any two methods of PPS selection. 07. When N=16 and n = 4, what will be your choice for random group sizes in random group method? Give reason. 08. Define ratio estimator for the population total. 09. Name any two randomised response techniques.

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