Step-by-step explanation:
I think the fig.. will helps you a lot...
Answer: 0.064
The formula to find the margin of error :-
Given : Significance level :
Critical value :
Sample size : n=400
The proportion of people support the candidate :p=0.44
Then ,
Hence, Margin of error = 0.064
Answer:
(54C3) + (69C2) + (66C2) = 29295