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Question 1: Which is best practice? A. Contrasts of interest are determined by research questions and...

Question 1:

Which is best practice?

A. Contrasts of interest are determined by research questions and should be explicitly stated at the planning stage of an experiment.
B. Contrasts of interest are best determined during the exploratory data analysis stage.
C. The contrasts one should investigate are determined by the observed difference between treatment means; bigger observed differences are more interesting

Question 2

Which of the following is a contrast and orthogonal to

?1=4?1−(?2+?3+?4+?5)

A.
?2=?1−?3
B.
?3=4?1+(?2+?3+?4+?5)
C.
?4=?2−?3

Question 3

A contrast is a comparison of means.

True

False

Question 4:

Which of the following qualifies as a contrast?

A.
?1=0.5?1+0.5?2
B.
?2=??1–0.5(?2+?3)
C.
?3=?1+?2+?3
D.
?4=13(?1+?2+?3)

Show all details. Thanks

Expert Solution

milcah answered 1 year ago

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