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Confidence Interval Calculator · 2 versions side by side.

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BASELINE

Baseline

95% confidence interval

48.04 – 51.96

50 ± 1.96

baseline

Sample mean50

Standard deviation10

Sample size100

Confidence level95%

Margin of error1.960

Standard error1.000

OPTION A

Sample mean: 60

95% confidence interval

58.04 – 61.96

60 ± 1.96

Sample mean60

Standard deviation10

Sample size100

Confidence level95%

Margin of error1.960

Standard error1.000