6. In a recent presidential election, 611 voters were surveyed and 305 of them said they voted for the candidate who won. Use a 0.04 significance level to test the claim that among all voters, 43\% say they voted for the winning candidate.
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This gives us a sample proportion of $\hat{p} = \frac{305}{611} \approx 0.5$. Show more…
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In a presidential election, 308 out of 611 voters surveyed said that they voted for the candidate who won (based on data from ICR Survey Research Group). Use a 0.01 significance level to test the claim that among all voters, the percentage who believe that they voted for the winning candidate is equal to $43 \%,$ which is the actual percentage of votes for the winning candidate. What does the result suggest about voter perceptions?
Hypothesis Testing
Testing a Claim About a Proportion
1. In a presidential election, 308 out of 611 voters surveyed said that they voted for the candidate who won. Use a 0.01 significance level to test that among all voters, the percentage who believe they voted for the winning candidate is different from 43%, which is the actual percentage of votes for the winning candidate. What does the result suggest about voter perceptions? Must show all work.
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