Sample size. A pollster wishes to estimate,with 95% confidence, the proportion of people who believe that police tactics need to be reviewed in the wake of deaths of unarmed black men at the hands of police in cities including Ferguson, Missouri and Staten Island, New York. Find the minimum sample size necessary to achieve a margin of error of less than 3% assuming no previous studies on the topic are available. Document how you computed the sample size in the space provided below.

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