Travel to Outer Space ACBS News/New York Times poll found

Step 1 of 2

Given:

\(\begin{array}{l}
x=329\\
n=763\\
c=92 \%
\end{array}\)

The sample proportion is the number of successes divided by the sample size:

\(\hat{p}=\frac{x}{n}=\frac{329}{763} \approx 0.4312\)

For confidence level \(1-\alpha=0.92\), determine \(z_{\alpha / 2}=z_{0.04}\) using table E (look up 0.04 in the table, the -score is then the found z-score with opposite sign):

\(z_{\alpha / 2}=1.75\)