QI A random sample of n=2 households was drawn from a small colony N=5 households having monthly income (in rupees) as follows Households: 3 4 5 Income (in thousand rupees): 8 6.5 7.5 7 a) Calculate population mean Y , variance o? and s b) Enumerate all possible samples of size n=2 by without replacement method and verify that i) Sample mean is an unbiased estimator of population mean ii) Nỹ is an unbiased estimate of population total Y ii) V(ỹ) = (N-n)S and nN iv) E(s³)= s? Q2 In a population N=5, the values are 2, 4, 6, 8 and 10 then for a SRS of size n=3 show that V (y) srsworV(y) srswr

QI A random sample of n=2 households was drawn from a small colony N=5 households having monthly income (in rupees) as follows Households: 3 4 5 Income (in thousand rupees): 8 6.5 7.5 7 a) Calculate population mean Y , variance o? and s b) Enumerate all possible samples of size n=2 by without replacement method and verify that i) Sample mean is an unbiased estimator of population mean ii) Nỹ is an unbiased estimate of population total Y ii) V(ỹ) = (N-n)S and nN iv) E(s³)= s? Q2 In a population N=5, the values are 2, 4, 6, 8 and 10 then for a SRS of size n=3 show that V (y) srsworV(y) srswr

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

See similar textbooks