A metallurgy company wanted to investigate the effect of the percentage of ammonium and the stir rate
Question:
At the 0.05 level of significance,
a. Is there an interaction between the percentage of ammonium and the stir rate?
b. Is there an effect due to the percentage of ammonium?
c. Is there an effect due to the stir rate?
d. Plot the mean density for each percentage of ammonium and the stir rate.
e. Discuss the results of (a) through (d).
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Related Book For
Statistics For Managers Using Microsoft Excel
ISBN: 9780133130805
7th Edition
Authors: David M. Levine, David F. Stephan, Kathryn A. Szabat
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