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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Definitions:

Functional Fixedness

A cognitive bias that limits a person to using an object only in the way it is traditionally used, hindering problem-solving and creativity.

Hammer

A tool typically used to drive nails into, or pull nails from, some other object, generally involving a handle and a heavy head.

Mental Set

A tendency to approach situations in a fixed way based on previous experiences, potentially hindering problem-solving.

Problem Solving

The process of identifying a challenge and finding an effective solution to overcome it.