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(1 point) A poll is taken in which394 394out of500 500randomly selected voters indicated their preference for a certain candidate. (a) Find a95 95% confidence

(1 point) A poll is taken in which394

394out of500

500randomly selected voters indicated their preference for a certain candidate.

(a) Find a95

95% confidence interval forp

(b) Find the margin of error for this 95% confidence interval forp

(c) Without doing any calculations, indicate whether the margin of error is larger or smaller or the same for an 80% confidence interval.

A.larger

B.smaller

C.same

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