Statistics for Engineers and Scientists
4th Edition
ISBN: 9780073401331
Author: William Navidi Prof.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 9.5, Problem 11E
The article “Factorial Design for Column Rotation of Phosphate Wastes” (N. Abdel-Khalek, Particulate Science and Technology, 2000:57–70) describes a 23 factorial design to investigate the effect of superficial air velocity (A), frothier concentration (B), and superficial wash water velocity (C) on the percent recovery of P2O5. There were two replicates. The data are presented in the following table.
- a. Compute estimates of the main effects and interactions, along with their sums of squares and P-values.
- b. Which factors seem to be most important? Do the important factors interact? Explain.
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Chapter 9 Solutions
Statistics for Engineers and Scientists
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