IBM Water System SPSS COMPLEX SAMPLES 19 Manuale Utente Pagina 187

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173
Complex Samples Ratios
Figure 18-2
Ratios dialog box
E Select Current value as a numerator variable.
E Select Value at last appraisal as the denominator variable.
E Select County as a subpopulation variable.
E Click Statis tics.
Figure 18-3
Ratios Statistics dialog box
E Select Confidence interval, U n weighted co unt,andPopulation size in the Statistics group.
E Select t-test and enter 1.3 as the test value.
E Click Continue.
E Click OK in the Complex Samples Ratios dialog box.
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