Answer:
(0.6744,0.7258)
Step-by-step explanation:
Given that p equal the proportion of Americans who favor the death penalty.
[tex]n=1234\\y=864\\p=\frac{864}{1234} \\=0.7002\\q=0.2998[/tex]
std error =[tex]\sqrt{\frac{pq}{n} } \\=0.0130[/tex]
95% confidence interval=p±*margin of error
margin of error = 1.96*std error =0.0256
Confidence interval lower bound=[tex]0.7002-0.0256\\=0.6744[/tex]
Upper bound =[tex]0.7002+0.0256\\=0.7258[/tex]
(0.6744,0.7258)
