Answer:
The 90% level of confidence interval For the Population proportion
(0.6569 ,0.7031)
Explanation:
Explanation:-
Given sample size 'n' = 1100
Given sample proportion

The 90% level of confidence interval For the Population proportion is determined by

90% of level of significance Z-value


On calculation , we get
(0.68 -0.0231 ,0.68 +0.0231)
(0.6569 ,0.7031)
Final answer:-
The 90% level of confidence interval For the Population proportion
(0.6569 ,0.7031)