when you conduct a survey, how do you know how many people is enough?
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There Is a metric in statistics called the confidence level and you choose how confident you want to be (95% sure 99%, 99.5%) but the only way you can get 100% sure is to do a parameter test which is the entire population
More people is better. Depending on the survey you decide if it’s enough people for you or not. A survey of 1,700 people in Pennsylvania is worthless to me when considering how Americans feel about anything really but especially the president.
Polls can say whatever you want them to say based on how you ask the questions, what areas you choose to call, what time of day you call, etc. so if you truly want to know if a poll is accurate or not you have to look at these things. One poll might be 98,000 people from across the nation and another of 1,200 people in the Chapel Hill area of North Carolina.
Happy hunting!
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