A political candidate is anxious about the outcome of the election. Complete par
ID: 3057683 • Letter: A
Question
A political candidate is anxious about the outcome of the election. Complete parts (a) and (b) below.
(a) To have his next survey result produce a 95% confidence interval with a margin of error of no more than 0.033, how many eligible voters are needed in the sample?
(Round up to the nearest whole number.)
(b) If the candidate fears that he's way behind and needs to save money, how many voters are needed if he expects that his percentage among voters p is near0.25?
(Round up to the nearest whole number.)
Explanation / Answer
A political candidate is anxious about the outcome of the election. Complete parts (a) and (b) below.
(a) To have his next survey result produce a 95% confidence interval with a margin of error of no more than 0.033, how many eligible voters are needed in the sample?
(Round up to the nearest whole number.)
(b) If the candidate fears that he's way behind and needs to save money, how many voters are needed if he expects that his percentage among voters p is near0.25?
(Round up to the nearest whole number.)