A gallup poll used telephone interviews to survey a sample

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Reference no: EM13620215

A Gallup Poll used telephone interviews to survey a sample of 1025 U.S. residents over the age of 18 regarding their use of credit cards. The poll reported that 76% of Americans said that they had at least one credit card. Give the 95% margin of error for this estimate.

Reference no: EM13620215

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