Mathematics, 04.07.2020 14:01, orangeicecream

There is no prior information about the proportion of Americans who support Medicare-for-all in 2019. If we want to estimate 95% confidence interval for the true proportion of Americans who support Medicare-for-all in 2019 with a 0.3 margin of error, how many randomly selected Americans must be surveyed? (Round up your answer to nearest whole number)

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There is no prior information about the proportion of Americans who support Medicare-for-all in 2019...