I If We Want to Determine Which Treatment Means Differ

question 37

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 no 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) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

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