APFIVE Finite Population Correction Factor
A study compares the proportion of adults who exercise regularly in two towns. Town X has 5,000 adults and Town Y has 3,000 adults. If researchers sample 600 adults from Town X and 400 adults from Town Y without replacement, how should they calculate the standard deviation of the difference in sample proportions?
A
Increase the standard deviation by 10%
B
Use the standard formula; the difference is negligible
C
Apply finite population correction factors to both samples
D
Use bootstrapping to estimate the standard deviation
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