Three skin cleansing agents were used on three persons.
Chapter 13, Problem 75SE(choose chapter or problem)
Three skin cleansing agents were used on three persons. For each person, three patches of skin were exposed to a contaminant and afterward cleansed by using one of the three cleansing
agents. After 8 hours, the residual contaminant was measured, with the following results:
SST = 1.18, SSB = .78, SSE = 2.24.
a What are the experimental units, and what are the blocks in this experiment?
b Test the hypothesis that there are no differences among the treatment means, using \(\alpha=.05\).
Equation transcription:
Text transcription:
alpha=.05
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