Elections 3
From a randomised sample of 500 voters, 140 expressed that they consider the protection of the environment to be the most important task of society, and therefore they will vote for the political party which has in its programme the protection of the environment. Construct 90%, 95%, and 99% confidence intervals for the estimation of the share of voters who consider the protection of the environment to be the most important task of society. Then compare the width of the individual interval estimates and the size of the marginal errors.
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