Question: The following data are from an experiment comparing three different treatment conditions:

A B C

0 1 2 N=15

2 5 5 EX2=354

1 2 6

5 4 9

2 8 8

_________________________________________________________________

T=10 T=20 T=30

SS=14 SS=30 SS=30

1. If the experiment uses an independent-measures design, can the researcher conclude that the treatments are significantly different? Test at the .05 level of significance.
2. If the experiment is done with a repeated-measures design, should the researcher conclude that the treatments are significantly different? Set alpha at .05 again.
3. Explain why the results are different in the analyses of parts a and b.

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