I If We Want to Determine Which Treatment Means Differ

question 84

Multiple Choice

i. If we want to determine which treatment means differ, one method is confidence intervals. ii. If the confidence interval includes 0, there is a difference in the pair of treatment means.
iii. If both end points of a confidence interval are of the same sign, it indicates that the treatment means are not different.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) and (ii) are correct statements but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (i) is a correct statement but not (ii) or (iii).
• E) (i), (ii), and (iii) are all false statements.

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