13-1. In Design and Analysis of Experiments, 5th edition (John Wiley & Sons, 2001) D. C
Chapter 13, Problem 13-1(choose chapter or problem)
13-1. In Design and Analysis of Experiments, 5th edition (John Wiley & Sons, 2001) D. C. Montgomery describes an experiment in which the tensile strength of a synthetic fiber is of interest to the manufacturer. It is suspected that strength is related to the percentage of cotton in the fiber. Five levels of cotton percentage are used, and five replicates are run in random order, resulting in the data below. Cotton Percentage Observations 123 45 15 7 7 15 11 9 20 12 17 12 18 18 25 14 18 18 19 19 30 19 25 22 19 23 35 7 10 11 15 11
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