bbygirlesphx2461 bbygirlesphx2461
  • 18-01-2024
  • Mathematics
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For a national survey with a mean GPA of 3.3 and a margin of error of ±3% for a 99% confidence interval among 900 college freshmen, how many students do you need to select for a 95% confidence interval with a small margin of error ±3%?

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