In Design and Analysis of Experiments, 5th edition (John Wiley & Sons, 2001) D. C. Montgomery describes
Question:
(a) Does cotton percentage affect breaking strength? Draw comparative box plots and perform an analysis of variance. Use a = 0.05.
(b) Plot average tensile strength against cotton percentage and interpret the results.
(c) Analyze the residuals and comment on model adequacy.
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a Analysis of Variance for STRENGTH SS Source COTTON 47576 Error 16120 Total 24 63696 Rejec...View the full answer
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