Question: 15.1 The following data are obtained from a 23 factorial experiment replicated three times. Evaluate the sums of squares for all factorial effects by the

15.1 The following data are obtained from a 23 factorial experiment replicated three times. Evaluate the sums of squares for all factorial effects by the contrast method. Draw conclusions.

Treatment Combination Rep 1 Rep 2 Rep 3

(1) 12 19 10 a 15 20 16 b 24 16 17 ab 23 17 27 c 17 25 21 ac 16 19 19 bc 24 23 29 abc 28 25 20

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