Question: 15.10 Consider Exercise 15.3 once again. Threefactor interactions are often not significant, and even if they are, they are difficult to interpret. The interaction ABD
15.10 Consider Exercise 15.3 once again. Threefactor interactions are often not significant, and even if they are, they are difficult to interpret. The interaction ABD appears to be important. To gain some sense of interpretation, show two AD interaction plots, one for B = −1 and the other for B = +1. From the appearance of these, give an interpretation of the ABD interaction.
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