Point Estimate and Margin of Error

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Notes

Notes for Margin of Error

Notes for Confidence Interval

Practice Questions

For the each confidence interval find the point estimate and the margin of error.

\(1)\) \( 0.452 \text{ to } 0.508\)
Show Point Estimate
\(\text{The point estimate is } 0.480 \,\, \left( \text{This is the work} \rightarrow \frac{.452+.508}{2} \right)\)
Show Margin of Error
\(\text{The margin of error is } 0.028 \,\, \left( \text{This is the work} \rightarrow \frac{.508-.452}{2} \right)\)

\(2)\) \( [0.5,0.9]\)
Show Point Estimate
\(\text{The point estimate is } 0.7\)
Show Margin of Error
\(\text{The margin of error is } 0.2\)

\(3)\) \( [20.84,26.28]\)
Show Point Estimate
\(\text{The point estimate is } 23.56\)
Show Margin of Error
\(\text{The margin of error is } 2.72\)

See Related Pages\(\)

\(\bullet\text{ Statistics Homepage}\)
\(\,\,\,\,\,\,\,\,\text{All the Best Topics…}\)

\(\bullet\text{ Margin of Error}\)
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\(\bullet\text{ Confidence Intervals}\)
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\(\bullet\text{ Standard Error}\)
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\(\bullet\text{ Confidence Level}\)
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\(\bullet\text{ Type I and Type II Errors}\)
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\(\bullet\text{ One Sample z-test}\)
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\(\bullet\text{ Two Sample z-test for Difference Between Means}\)
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\(\bullet\text{ Hypothesis Test- Difference Between Proportions}\)
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\(\bullet\text{ Chi-squared test}\)
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