Question: 14.65 True or false: Interaction For subjects aged under 50, there is little difference in mean annual medical expenses for smokers and nonsmokers. For subjects

14.65 True or false: Interaction For subjects aged under 50, there is little difference in mean annual medical expenses for smokers and nonsmokers. For subjects aged over 50, there is a large difference. Is it true or false that there is interaction between smoking status and age in their effects on annual medical expenses?

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