Which of the following statements is true?

A. Confidence intervals are known as point estimates.
B. Confidence intervals tell us about the range of possible values of a statistic within the sample.
C. If the confidence interval for the difference between two means does include zero then the difference between the means is statistically significant.
D. Confidence intervals are not biased by non-normally distributed data.


Answer: C

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Fill in the blank(s) with the appropriate word(s).

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