Understand statistics as inference about population parameters from random samples.
Map a statistic to a closed population-estimate statement
Problem
A voter sample has support proportion \(0.62\). Identify the statistic and state the frame-covered population quantity it estimates.
Big Picture
What this problem is really about
A numerical summary computed from sampled units is a statistic, and its form determines the matching population parameter it estimates. Carry the same quantity type and operation from sample to population, then name the population covered by the frame. Use the language of estimation rather than claiming the observed statistic equals the unknown parameter exactly.
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