Two-stage sample from MU284

Description

The MU284 population comes from Sarndal et al, and the complete data are available from Statlib. These data are a two-stage sample from the population, analyzed on page 143 of the book.

Usage

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data(mu284)

Format

A data frame with 15 observations on the following 5 variables.

id1

identifier for PSU

n1

number of PSUs in population

id2

identifier for second-stage unit

y1

variable to be analysed

n2

number of second-stage units in this PSU

Source

Carl Erik Sarndal, Bengt Swensson, Jan Wretman. (1991) "Model Assisted Survey Sampling" Springer.

References

Full MU284 population at http://lib.stat.cmu.edu/datasets/mu284

Examples

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data(mu284)
(dmu284<-svydesign(id=~id1+id2,fpc=~n1+n2, data=mu284))
(ytotal<-svytotal(~y1, dmu284))
vcov(ytotal)

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