Home » Certification Exams Questions » Find the range of population

A company surveyed a society to find out the percentage of people who consumed burgers regularly. It went into the survey with a confidence of 95%. The margin of error considered was ±1%. About 25% of 1000 people polled Yes in a society of 10,000 people. What is the range of people in the population who would have voted Yes?

OPTIONS

  • 20% – 30%
  • 22% – 28%
  • 24% – 26%
  • 21% – 29%

ANSWER

24% – 26%

EXPLANATION

Applying standard confidence intervals formula for proportions.

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