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From a population formed by N clusters a sample of size n is selected with a procedure by which the first unit is chosen for the sample with unequal probabilities Pi, and the remaining n-1 clusters of the sample are chosen with equal probabilities, all the extractions being carried out without replacement. An unbiased estimate of the population total X and its absolute and relative sampling errors is requested being N = 50, n = 4, Xi the total of the i-th cluster and knowing the following data of the clusters of the sample: P X₁ 0,026 0,017 0,022 0,013 100 80 120 60

From a population formed by N clusters a sample of size n is selected with a procedure by which the first unit is chosen for the sample with unequal probabilities Pi, and the remaining n-1 clusters of the sample are chosen with equal probabilities, all the extractions being carried out without replacement. An unbiased estimate of the population total X and its absolute and relative sampling errors is requested being N = 50, n = 4, Xi the total of the i-th cluster and knowing the following data of the clusters of the sample: P X₁ 0,026 0,017 0,022 0,013 100 80 120 60

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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From a population formed by N clusters a sample of size n is selected with a procedure by which the first unit is chosen for the sample with unequal probabilities Pi, and the remaining n-1 clusters of the sample are chosen with equal probabilities, all the extractions being carried out without replacement. An unbiased estimate of the population total X and its absolute and relative sampling errors is requested being N = 50, n = 4, Xi the total of the i-th cluster and knowing the following data of the clusters of the sample: P X₁ 0,026 0,017 0,022 0,013 100 80 120 60
Transcribed Image Text:From a population formed by N clusters a sample of size n is selected with a procedure by which the first unit is chosen for the sample with unequal probabilities Pi, and the remaining n-1 clusters of the sample are chosen with equal probabilities, all the extractions being carried out without replacement. An unbiased estimate of the population total X and its absolute and relative sampling errors is requested being N = 50, n = 4, Xi the total of the i-th cluster and knowing the following data of the clusters of the sample: P X₁ 0,026 0,017 0,022 0,013 100 80 120 60
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