What Effect Will an Outlier Have on a Confidence Interval

question 29

Multiple Choice

What effect will an outlier have on a confidence interval that is based on a small sample size?

• A) The confidence interval will be wider than an interval without the outlier.
• B) The interval will be smaller than an interval without the outlier.
• C) The interval will be the same with or without the outlier.
• D) The interval will reveal exclusionary data.

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