A metallurgy company wanted to investigate the effect of the percentage of ammonium and the stir rate

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A metallurgy company wanted to investigate the effect of the percentage of ammonium and the stir rate on the density of the powder produced. The results (stored in Density) are as follows:
A metallurgy company wanted to investigate the effect of the

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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Statistics For Managers Using Microsoft Excel

ISBN: 772

7th Edition

Authors: David M. Levine, David F. Stephan, Kathryn A. Szabat

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