SOLUTION: illustrates several possible situations, using a hypothetical two-factor ANOVA model in which factor A has three levels and factor B has two levels. For the delivery time exampl

Question 278223: illustrates several possible situations, using a hypothetical two-factor ANOVA
model in which factor A has three levels and factor B has two levels. For the delivery time example,
a significant interaction effect would mean that suppliers have different mean delivery
times for different clinics. However, Figure 11.25 shows that, while the interaction plot lines
do cross, there is no consistent pattern, and the lines tend to be parallel more than crossing.
The visual indications of interaction are, therefore, weak for the delivery time data. This conclusion
is consistent with the interaction p-value ( p = .085) for the F test of A�B.

Answer by rachel111(2) (Show Source): You can put this solution on YOUR website!
illustrates several possible situations, using a hypothetical two-factor ANOVA
model in which factor A has three levels and factor B has two levels. For the delivery time example,
a significant interaction effect would mean that suppliers have different mean delivery
times for different clinics. However, Figure 11.25 shows that, while the interaction plot lines
do cross, there is no consistent pattern, and the lines tend to be parallel more than crossing.
The visual indications of interaction are, therefore, weak for the delivery time data. This conclusion
is consistent with the interaction p-value ( p = .085) for the F test of A�B.

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