Question: What is an outlier and how does it affect the confidence interval? a. An outlier stretches the interval because it increases the standard deviation. b.

What is an outlier and how does it affect the confidence interval?

a. An outlier stretches the interval because it increases the standard deviation.

b. An outlier compacts the interval because it increases the standard deviation.

C. An outlier stretches the interval because it decreases the standard deviation.

D. An outlier compacts the interval because it decreases the standard deviation.

What is the answer to this question?

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