27.12.2012 Views

The 1995/1996 Household Income, Expenditure - (PDF, 101 mb ...

The 1995/1996 Household Income, Expenditure - (PDF, 101 mb ...

The 1995/1996 Household Income, Expenditure - (PDF, 101 mb ...

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

where<br />

and<br />

R = f g'<br />

are estimates of totals for variables y and x, respectively, calculated as<br />

specified previously.<br />

Variance Estimation Procedures<br />

<strong>The</strong> ultimate cluster variance estimator for a total can be expressed as follows:<br />

Variance Estimator of a Total<br />

where:<br />

<strong>The</strong> variance estimator of a ratio can be expressed as follows:<br />

Variance Estimator of a Ratio<br />

where:<br />

V(R) = ;2 [V( f) + R 2 V(.X) - 2 R COV(X, f)] I<br />

1.40

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!