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A Gallup poll found that 493 of 1050 adult Americans believe it is the responsibility of the federal government to make sure all Americans have healthcare coverage.
Sample: 1050 adult selected for survey
Population: All American adults
The variable is " Whether American adult believe it is the responsibility of the federal government to make sure all Americans have healthcare coverage or not?"
It is qualitative variable.
The point estimate is
It is statistic because it is sample proportion.
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To increase the precision, either we can increase the sample size or we can decrease the Confidence level.
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