Confidence Intervals for the Population Proportion (VCE SSCE Mathematical Methods): Flashcards

Single value used to estimate unknown population parameter

Population proportion $p$

Interval estimate for population proportion

Both $np$ and $n(1-p)$ must be greater than 5

$k = 1.9600$

95% of such intervals will contain true $p$

Distance from $\hat{p}$ to interval endpoints

Smaller margin of error

Wider interval required

Fixed but unknown constant we're estimating