The necessary step would be we would have to get every respondent in the population to participate if you wished to conduct a poll with a margin of error of zero.
As it is given in the description itself, if we were to conduct a poll with a margin of error of zero, we would need to recruit every responder in the population to participate.
Therefore, the necessary step would be we would have to get every respondent in the population to participate if you wished to conduct a poll with a margin of error of zero.
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