Calculate Margin of Error for a confidence interval of (1,9)
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Calculate the margin of error and sample mean for
a confidence interval of (1,9)
Calculate interval size:
Interval Size = 9 - 1
Interval Size = 8
Calculate the margin of error:
Margin of Error =
±Interval Size
2
Margin of Error =
±8
2
Margin of Error = ±4
Calculate sample mean:
The sample mean is just the midpoint of the confidence interval
Sample Mean x =
Interval Size
2
Sample Mean x =
9 + 1
2
Sample Mean x =
10
2
Final Answers
Margin of Error = ±4
You have 2 free calculationss remaining
What is the Answer?
Margin of Error = ±4
How does the Margin of Error from Confidence Interval Calculator work?
Free Margin of Error from Confidence Interval Calculator - Given a confidence interval, this determines the margin of error and sample mean. This calculator has 1 input.
What 2 formulas are used for the Margin of Error from Confidence Interval Calculator?