Question
A poll on a proposition showed that we are $99 \%$ confident that the population proportion of voters supporting it is between $52 \%$ and $62 \%$. Find the sample proportion that supported the proposition.
Step 1
52$ and the upper limit is $P_{hat} + E = 0.62$, where $P_{hat}$ is the sample proportion and $E$ is the margin of error. Show more…
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A poll on a proposition showed that we are $95 \%$ confident that the population proportion of voters supporting it is between $40 \%$ and $48 \%$. Find the sample proportion that supported the proposition.
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A poll on a proposition showed that we are $95 \%$ confident that the population proportion of voters supporting it is between $40 \%$ and $48 \%$. Find the margin of error.
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