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Confidence Interval Calculator

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Confidence Interval Calculator Online:

Our confidence interval calculator is an online application to enter the sample, the mean, and standard deviation, and choose a confidence level to calculate the margin of error or desired confidence level in just one click.


How do I calculate 95% confidence interval?

You must do the following steps to calculate the confidence interval level:

  1. Open your browser and type in https://crazywebtools.com
  2. Click on Confidence Interval Calculator Online
  3. Add sample mean(x)
  4. Add Sample Size(n)
  5. Add Standard Deviation (s)
  6. Add Confidence Level in %
  7. Click on Calculate to calculate your confidence interval level.

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