A poll is taken in which 311 out of 550 randomly selected voters indicated their preference for a certain candidate.
(a) Find a 99% confidence interval for p.
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(b) Find the margin of error for this 99% confidence interval for p.
(c) Without doing any calculations, indicate whether the margin of error is larger or smaller or the same for an 80% confidence interval.
O A. larger
O B. smaller
O C. same