Question:

A race between two candidates for mayor looks to be close.

Last updated: 7/24/2022

A race between two candidates for mayor looks to be close.

A race between two candidates for mayor looks to be close. Assuming a good random sample, how many voters would need to have their answers included in a poll in order to achieve a margin of error for the support of one candidate of +/- 3.7% at the 90% confidence level?