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In October2017, the Gallup Poll asked a sample of1028 U.S. adults, Are you in favor of the death penalty for a person convicted of murder?

In October2017, the Gallup Poll asked a sample of1028

U.S. adults, "Are you in favor of the death penalty for a person convicted of murder?" Suppose that the margin of error needs to be half as large for this poll. How many people must beinterviewed?

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