The measured responses for r = 4 groups are summarized below. Use it to fill in

Question

The measured responses for r = 4 groups are summarized below. Use it to fill in the following analysis of variance table. Source df SS MS F P Treatment __ _____ _____ _____ _____ Error __ _____ _____ Total __ _____ The bioactivity of four different drugs A, B, C, D for treating a particular illness was compared in a study. Complete the following ANOVA table for the data. Source Sums of squares Degrees of freedom Mean square F P Between treatments 64.42 _____ _____ 8.98 _____ Within treatments _____ _____ 2.39 Total _____ 20

Explanation / Answer

1)

hence

2)

i ni Yi S;^2 ni*(Yi-mean)^2 (ni-1)Si^2 1 10 10.69 0.83 9.361 7.470 2 12 12.17 0.894 3.152 9.834 3 8 11.95 0.51 0.684 3.570 4 9 11.82 0.741 0.238 5.928 mean 11.6575 13.435 26.802

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