AnswersStatisticsPractice TestQuestion 1
1
practice testMultiple Choice

Practice Test

Question 1 • Statistics

Is this a randomized block design?

Answer
A
No, the subjects were not paired by age to determine if it affected the cream’s effectiveness.
B
Yes, the participants are grouped by sun exposure, and then both treatments are randomly assigned within each group.
C
No, the groups have an equal number of subjects.
D
Yes, the subjects could be randomly assigned to two different treatments.
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