Multiple Choice
When the samples we want to compare pair in some natural way,such as a pretest/posttest for each person or husband/wife pairs,a more appropriate form of analysis is to not construct a confidence interval treating them as two separate variables,but instead to construct a confidence interval to estimate the mean
A) difference.
B) sum.
C) ratio.
D) total.
Correct Answer:

Verified
Correct Answer:
Verified
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