3 √ x That’s a square root in the middle
Answer: (16%, 24%)
Step-by-step explanation:
The confidence interval for proportion is given by :-
Given : Significance level :
The proportion of the respondents answered "crime and violence." : p=0.20
Margin of sampling error :
Now, the 95% confidence interval for the proportion of the population that would respond "crime and violence" to the question asked by the pollsters is given by :-
In percentage,
Hence, the 95% confidence interval for the percentage of the population that would respond "crime and violence" to the question asked by the pollsters =(16%, 24%)