Question: Two 95% mean confidence intervals indicate a difference between means at less than the alpha = .01 level when A. The endpoints do not touch

Two 95% mean confidence intervals indicate a difference between means at less than the alpha = .01 level when

A. The endpoints do not touch

B. The endpoints just barely overlap

C. The endpoints overlap by about 25% of their range

D.We cannot use single mean confidence intervals to determine differences.

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