Solved: In Exercise 12.10, a matched-pairs analysis was
Chapter 13, Problem 42E(choose chapter or problem)
The accompanying table presents data on yields relating to resistance to stain for three materials (M1, M2 and M3) treated with four chemicals in a randomized block design. (A low value indicates good stain resistance.)
\(\Sigma_{i} \Sigma y_{i j}^{2}=674\) \(\frac{1}{12}\left(\Sigma_{i} \sum y_{i j}\right)^{2}=588\)
a Is there evidence of differences in mean resistance among the four chemicals? Give bounds for the -value.
b What would you conclude at the \(\alpha=.05\) level of significance?
Equation transcription:
Text transcription:
Sigma{i} Sigma y{i j}^{2}=674
frac{1}{12}\left(Sigma{i} sum y{i j}\right)^{2}=588
alpha=.05
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