An article in the Journal of Quality Technology [1981,
Chapter 13, Problem 37E(choose chapter or problem)
An article in the Journal of Quality Technology [1981, Vol. 13(2), pp. 111–114)] described an experiment that investigated the effects of four bleaching chemicals on pulp brightness. These
four chemicals were selected at random from a large population of potential bleaching agents. The data are as follows:
(a) Is there a difference in the chemical types? Use \(\alpha=0.05\).
(b) Estimate the variability due to chemical types.
(c) Estimate the variability due to random error.
(d) Analyze the residuals from this experiment and comment on model adequacy.
Equation Transcription:
Text Transcription:
\alpha=0.05
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