Question: (a) What sample size should be obtained if he wants to be within2 percentage points with 96% confidence if he uses an estimate of 54%

(a) What sample size should be obtained if he wants to be within2 percentage points with 96% confidence if he uses an estimate of 54% obtained from a poll? (Round up to the nearest integer.)

(b) What sample size should be obtained if he wants to be within2 percentage points with 96% confidence if he does not use any prior estimates?

(Round up to the nearest integer.)

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