Which of the following decreases the margin of error for a confidence interval? Decreasing the sample size. Decreasing the confidence level. Increasing the sample size. Increasing the confidence level.

MATLAB: An Introduction with Applications
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**Question:**  
Which of the following *decreases* the margin of error for a confidence interval?

- [ ] Decreasing the sample size.
- [ ] Decreasing the confidence level.
- [ ] Increasing the sample size.
- [ ] Increasing the confidence level.
Transcribed Image Text:**Question:** Which of the following *decreases* the margin of error for a confidence interval? - [ ] Decreasing the sample size. - [ ] Decreasing the confidence level. - [ ] Increasing the sample size. - [ ] Increasing the confidence level.
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given data we want to decrease margin of error for a confidence interval. 

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