(Answered)-The local independent party wants to poll registered voters to - (2025 Updated Original AI-Free Solution

Question

The local independent party wants to poll registered voters to see the proportion who would consider voting for an independent candidate. They have asked you to tell them how many voters they need to survey to get a 90% confidence level that the true population proportion is within a 0.02 margin of error.

How many people do they need to survey to achieve the desired margin of error?